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Tag: How to tell if your motorcycle tires are worn

when to replace motorcycle tires age

Five years old
The general rule of the thumb when it comes to motorcycle tire age is to change your tires once they’refive years oldfrom the date of manufacture. However,with good maintenance and regular checks at a professional motorcycle shop,they can last a bit longer.

How do I know when to replace my motorcycle tires?

Worn Out or Damaged TyresWear Bars. The easiest way to tell your tires are worn out is by looking for wear bars. …Patterning. Wear bars may not be much help on slicker tires with a tread that does not cross over the center of the tire surface.Damage. …

How much does it cost to change a motorcycle tire?

There are many services that mechanics generally provide, and we will look at all of them. Typically, changing tires on a motorcycle cost anywhere between $20 and 125$. In the carry-in service where you bring in your motorcycle’s wheels, the cost range is $25 to $50.

How to know when to change motorcycle tires?

When To Replace Motorcycle TiresIs your motorcycle tire sidewall cracking? If your motorcycle tire sidewall is cracking it’s time to replace your tire,no matter shape the tire tread is in,or how …Do you have worn motorcycle tires? Of course,the most common reason for a motorcycle tire to need replacing is simply that tire is worn out. …Do you have uneven motorcycle tire wear? …More items…

How to tell if your motorcycle tires are worn.?

Wear indicators are available on nearly every tire meant for consumer use, including motorcycle tires. Sometimes a triangle or the letters TWI will be located on the sidewall. These are used to help you find where the wear indicator is located on the tire’s tread. Once the tire is worn down to the point of being on the same level as the wear …

How to tell if a tire is worn out?

The easiest way to tell your tires are worn out is by looking for wear bars. These are small, raised bumps sitting at the bottom of the tread grooves. If you are having trouble finding the wear bars, have a look on the side-wall of the tire for a △ (triangle) or “ TWI ” molded into the rubber. These are tire wear indicators and by following a direct line from that marking across the tire surface to the other sidewall, you should find wear bars in the tread grooves somewhere along that line.

What does it mean when your bike tires are scalping?

Alternatively, if you live in an area with lots of bends , you may see your front tire wear unevenly on one side more than the other , this is commonly known as “scalping”. While your tires may have ample tread depth, if they begin to wear unevenly you will notice a change in the bike’s handling while riding.

What does the number 0116 mean on a tire?

The last four numbers will indicate the month and year the tire was manufactured. For example, 0116 means the tire came off the production line in January 2016.

How much tread do you have left on a bike tire?

If the tire surface is level with any of the wear bars, you only have about 1/32 inch left of tread and your tires should be replaced. At this point of wear, your bike can be compromised through instability, loss of grip, flat tires, or even blow-outs.

Why do tires have metal cords?

Metal cords are used to hold the carcass and structure of the tire together. As the tire wears, the rubber protecting the metal cords gets thinner and their shape or pattern can start to show through the surface of the tire. In extreme cases, the rubber may wear through completely showing visible metal cords on the surface of the tire or even throwing sparks while riding. Sparks are bad. You definitely need to replace your tire if you start seeing sparks.

Why do tires come with a round surface?

Tires fresh off the production line will come with a perfectly round surface or profile so that when used they have a smooth ride and consistent handling. Over time, the tire profile can wear unevenly depending on your riding style and the roads you most commonly ride.

What is wear bar?

Equally important, in many countries, wear bars are also an indicator that you are legally required to replace your tire (check your local jurisdiction for road safety requirements).

Is it OK to mix tire brands on a motorcycle?

The tire manufacturers say definitely not, but many riders think this is just a tactic to boost sales.

Why do motorcycle tires have rubber?

This is done to help the rear tire wear more slowly and withstand more abuse from acceleration.

Why do racers use tire warmers?

This is part of the reason racers and track day riders use tire warmers. Not only to keep the tire warm and grippy but to reduce the number of heat cycles that the tire will have to endure. This is also why it’s a good idea to try to replace your tires and sets.

What does it mean when a tire starts making weird patterns?

When the rubber starts making these weird patterns, that means the metal chords are just about to wear through. It’s worth noting that a tire does not wear at the same rate throughout its life. As the rubber becomes thinner, the tire wears faster. Like car tires, motorcycle tires have wear bars.

Why does my bike tire lose grip?

Heat increases the rate of oxidization, so if your bike lives in a hot garage, or you live in a hot environment, your tire will lose its grip more rapidly because the heat accelerates the rate of decomposition of the rubber.

What is the most important component of keeping us from landing on our heads?

Tires are one of the most critical components keeping us from landing on our heads. Many factors contribute to a tire being worn out, including the most obvious. This is an extreme example of a tire being flat worn out.

What does 2714 mean on a tire?

If the number is “2714” that means the tire was manufactured in the 27th week of 2014. If the number is “0516” that means the tire was manufactured in the fifth week of 2016.

How to tell if motorcycle tires are worn?

Another sign of wear is cracking. When the rubber is dried out and begins rotting, it will appear as cracks on the surface. This is more common in hot, dry climates and it can be a major safety concern, causing dangerous tire blowouts while you are riding. If you see cracking , you should replace the motorcycle tires as soon as you can.

How to know when to replace motorcycle tires?

To know when to replace the motorcycle tires, simply put a penny head-first into one of the tread grooves on the tire. Provided that the tread covers Abraham Lincoln’s head, it is not too shallow. In the United States, the acceptable tread depth is usually 2/32 of an inch. If you insert the penny and see Lincoln’s head or face, you need to replace the motorcycle tires as soon as possible.

Why is it so hard to generalize tire timelines?

These issues create not only uneven wear but also accelerated wear. Motorcycle maintenance is necessary for extending the life of your tires, which explains why it is hard to generalize tire timelines—each set of circumstances has a different impact.

What is the most visible area of a tire?

The most visible area of the tire is its tread pattern. Located around the exterior of the tire, the textured pattern that sits on top of the tire carcass can tell you a lot about how many miles your tires have left.

What to do if you have a punctured motorcycle tire?

When you have a punctured tire, you should always use a patch or plug-patch to fix it . Cheap plugs do not require you to take the tire off the wheel, and it is important to assess the inside of the tire before you repair a puncture. Black shavings on the inside of the tire indicate that you have had significant low-pressure wear and that you need to replace the motorcycle tire altogether.

Why do bike tires wear out faster?

External factors such as weather patterns and road conditions also play a major role. If you frequently drive on smooth pavement, your tires are going to last longer than if you ride a very coarse road daily. Sport bike tires are made of softer compounds than say a sport touring or cruiser tires, so they will tend to wear out quicker in the same environment.

Why do my tires look angular?

If you notice that your tires have lost their round shape and look more angular, it is probably because they have seen many miles. In this situation, you might try re-inflating the tires to see if you notice any changes. It is possible that the tire pressure is low and causing your tires to appear misshapen.

What happens to tires when they disintegrate?

Rubber—the primary ingredient for tire manufacturing—oxidizes when exposed to the elements. When this happens, the tire begins stiffening from the inside out.

What does the tire identification number tell you?

This tire identification number tells you the week and year that any given tire was produced. The National Highway Traffic Safety Administration (NHTSA) mandates that all tires include an identification number.

Why do you need to check the tire number?

Checking for the tire identification number to verify the manufacture year ensures that you know exactly what you are buying. Even if the tread looks great, these “new” tires could have been in storage for a long time since they were made. Remember, oxidation impacts the internal structure of the tire first.

How old should a tire be to be replaced?

Any tire that is more than six years old should be replaced regardless of its wear. Younger tires that are showing signs of oxidation or that have low tread depth should also be changed out so that you can stay as safe as possible while on the road.

What happens when you drive a motorcycle with old tires?

As tires age, they undergo a process called oxidation that damages their structural integrity. To prevent this from affecting you and your motorcycle, it is important to learn how to read tire markings …

How old should you replace a motorcycle tire?

If one tire is bald while the other still has tread on it and is six years or younger, just replace the bald tire.

Why are tires so durable?

In general, tires need to be both rigid and malleable. Their ability to adjust to various types of terrain without crumbling is what makes them so durable. Exposure to the air causes the stiffened rubber to crack and disintegrate. This process compromises a tire’s overall functionality and makes it less safe to use.

What does scalloping mean on a tire?

Scalloping is especially common with off-road and dual-sport tires, which are particularly knobby. A small amount of scalloping isn’t a problem. When you start to feel increased vibration on the road, however, it’s time to change the tires. Off-road riders may notice that their tread knobs become rounded on all sides.

Why does my motorcycle tire bulge out?

This indicates severe damage to the tire’s outer surface. As a portion of the tire is weakened, the internal air pressure causes it to bulge outwards. The bubbling portion of the tire can be extremely fragile, so it’s not recommended to drive your motorcycle to the shop.

How to tell if a tire is worn flat?

This is basically an unkind way of saying that the center of your tire has been worn flat, while the edges haven’t seen much action. Keep an eye out for this, as flat spots suggest that a tire is nearing the end of its life . When you can feel the chicken strip while riding – or when it wears your tread below the minimum depth – time is up.

What does 347 mean on a tire?

Tires made before the year 2000 have three-digit born-on dates. So, the number 347 means the tire was made in the 34 th week of 1997, or 1987, or 1977, etc. It’s a bit more confusing, but don’t worry. Any tire made in the 1900s definitely needs to be replaced.

What to do if your bike tires fail a visual test?

If your tires fail any of these visual tests, congratulations! That means you get to buy some new boots for your bike.

What causes a tire to crack?

While these normally appear on a tire’s sidewall – near the rim – it’s worth having a look all over. Crazing is often caused by dry rot, which is especially common for those who can’t ride during the winter. If you live in Canada, that probably means you.

How to find the date on a tire?

Every tire is stamped with a “born-on” date. To find it, look for a three or four digit number at the end of the DOT markings. For post-2000 tires, the date will appear as four numbers. To give an example, consider the code 4812. This number indicates that the tire was made in the 48 th week of 2012. Need another example? Take 0313 – the third week of 2013. Easy, right?

What does the Michelin Man sign on the side of the tire mean?

2. The legal tread wear limit has been reached. A Michelin Man symbol on the upper side of your tires means that they feature a tread wear indicator. Similar to little bumps, these can be found at the bottom of the main grooves.

How to tell if a tire is worn?

Worn tires can ruin your vehicle’s performance and even endanger you or your loved ones. It is recommended that you do a weekly inspection to check: 1 The state of the tires 2 The depth of the treads 3 Any damage due to impacts or any sign of unusual wear.

How to choose tires for a car?

Choose your tires in accordance with legal requirements and the kind of equipment recommended for your vehicle. For optimal performance, use tires with the same tread pattern for the front and back. Tires that have different designs, treads and wear patterns might affect the vehicle’s balance and stability. Never fit a vehicle with one radial tire and one non-radial tire unless specified by the manufacturer.

Why do tires wear out?

It can also occur as a result of incorrect tire pressure.

Why do you need to change your tires?

Six reasons to change your tires. 1. The tire has a puncture. Tires are durable and designed to withstand impacts, but they sometimes puncture. If you get a flat tire, it should be replaced by a professional mechanic. 2.

Why are tires so hard to predict?

3. Tires show signs of aging. It is difficult to predict a tire’s lifespan because it bears no relation to its manufacturing date. Tires that have never been used, or have only been used infrequently, may still show signs of aging.

Do you need to change tires before changing Michelin tires?

Michelin strongly advises you to change your tires before reaching this point. Past this point, there is no guarantee that your tires will keep you safe or deliver grip and performance, particularly on wet surfaces. 3. Tires show signs of aging.

What does it mean when your tires crack?

Cracking along the sidewalls of the tire, also called a dry lot, is one of the indications that your tires need to be replaced. If your tires have a worn out and square profile, you’ll experience lower ride comfort, as the contact patch on the tire edges is small.

What is the date code for motorcycle tires?

All motorcycle tires come with a date code imprinted into the sidewall. This code is a 4-digit number. For example, 1322 stands for the 13th week of 2022. For sports bikes, front tires have a maximum range of 3700 miles, with back wheels at 1800 miles.

How long do motorcycle tires last?

While most motorcycle tires are designed to last up to 5 years, many factors determine how long your tires will last. For instance, road hazards, improper inflation pressure, improper use of tires, overloading, tire chain damage, tire spinning, negligence, misuse, tire alteration, and improper or insufficient maintenance may cause tire damage.

Where are the grooves on motorcycle tires?

Check for one of the tire grooves, normally located off the center of your motorcycle tires, and pick one with a raised segment of rubber. This raised rubber is the manufacturer’s lowest point of tire tread you can have to ensure safety when riding your motorcycle. An old trick to answering the “how old can motorcycle tires be …

Can you use motorcycle tires?

If not, then you can still use your motorcycle tires for some time before you consider buying replacements. Although you may be tempted to judge the usability and safety of your tires by the tread, this is not the only factor to consider and is highly discouraged by industry key players, including biking experts, motorbike mechanics, and even manufacturers.

What happens to tires as they age?

Here’s what happens as tires age. Tires are subject to a process called oxidation, whereby oxygen interacts with compounds in the rubber causing them to harden and eventually become brittle. As the rubber oxidization increases over time, tire performance decreases.

How long does it take for a tire to be fresh?

A one-year-old tire is considered very, very fresh. In fact, most tire companies put the "sell by" date somewhere out around five years from the date of manufacture. So unless you don’t expect to wear the tire out within five years from the date that’s stamped on the sidewall, don’t sweat it.

How old should a tire be to replace it?

Again, most tire manufacturers advise replacing a tire after it’s around five years old. You might not be able to tell the age by glancing at it, but if you notice cracks along the carcass of the tire, it needs to be replaced immediately. Too bad the ole sniff test doesn’t work here as it does with that carton of milk.

Do tires have a use by date?

Tires don’t have a “use by” date stamped on them like perishable foodstuffs because there are a lot of variables that determine the rate at which a tire degrades. However, tires do have a four-digit number stamped on the sidewalls indicating the week and year they were manufactured.

Where to find the date code on a Dunlop Q3?

Look for the date code in an oval stamp on your tire’s sidewall. The numbers represent the week and year of manufacture. Minted in the 13th week of 2017, this Dunlop Q3+ is as fresh as they come. Photo: Julia LaPalme

Do motorcycle tires expire?

Motorcycle tires wear out from use, but they can also expire from age. Keeping tabs on the age of your tires is important, but if you think your tires need to be as fresh as the contents of your fridge, we’d like to disabuse you of that myth.

Is there milk in motorcycle tires?

While it’s good to be cautious when it comes to the condition of your motorcycle tires, let’s be clear: Tires aren’t milk, and it seems some consumers are obsessed with only buying tires that have a very recent date code.

How to read date code on motorcycle tires?

To read the date code on motorcycle tires, you must find the 4-digit part of the DOT code on the sidewall of a tire. The first pair of numbers means the week, and the second pair means the year. source: pitstoparabia.com.

What is the DOT code for tires?

So, if you are wanting to determine the age of a tire with the code 3507 , you should read its manufacture date as the 35 th week of 2007.

How long do motorcycle tires last?

Motorcycle tires usually last for 5 to 10 years, but the golden age, according to most manufacturers, ends at the 6 th year of a tire’s frequent usage. The aging process depends on the environment and usage conditions, type of rubber, purpose of the tire, etc.

Why do tire manufacturers put hazard information in their manuals?

After that, manufacturers started to put the hazard information in their manuals, encouraging people to check the date code.

Do you have to put a tire code on both sides?

For consumers’ convenience and attention, the code is now required to be put on both sides of a tire. This new rule touches on all other parts of the whole tire code, including the sizing of the tire, its load index, speed rate, etc.

What is a tire warranty?

Most tire manufacturers warranty policies cover eligible tires that become unusable for any reason within the manufacturer’s control, such tire will be replaced with an equivalent new tire on the basis set forth in their Limited Warranty policy.

How long do tires last?

Now, how long do tires last? As with beer, a tire’s shelf life differs greatly depending on how it is stored. Left out in the sun and the elements, a beer might last a week and a tire is lucky to last a year without showing signs it is in need of replacement. On a pantry or warehouse shelf subject to temperature changes, a beer is good for several months and a tire for several years. Now, a beer stored in a refrigerator can stay fresh for years. Similarly, a tire stored in climate-controlled warehouse can stay fresh for up to 6 years.

How long is the warranty on Michelin tires?

All Michelin tires come with a limited warranty which covers defects in workmanship and materials for the life of the usable tread or 6 years from purchase date, whichever comes first. ** Note: Hold onto your receipt! If your tire born on date is 2 years old… and you misplace your receipt your warranty will revert back to the date code on the tire, not purchase date.

What is the date code for a tire?

The tire’s born-on-date, commonly known as a Date Code, is a standardized 4 digit number indicating the Week of and the Year of tire manufacture. In the case of the Shinko tire in this video, the tire was manufactured on Week 38 of 2016. This standardization was created and set into effect in the year 2000.

How many letters are in a tire number?

Department of Transportation (DOT) and the National Highway Traffic Safety Administration (NHTSA) require that tire Identification Numbers be a combination of the letters DOT followed by eight to thirteen letters and or numbers which identify manufacturer location, tire size, manufacturer’s code along with Week and Year the tire was produced.

How long do motorcycle tires last?

Motorcycle tires are covered for the life of the tire, 4 years from the manufacturer Date Code or until the tread depth reaches 1/32".

What are road hazards?

Road hazards, Improper use or operation, including, without limitation: Improper inflation pressure, overloading, tire/wheel spinning, use of an improper wheel, tire chain damage, misuse, misapplication, negligence, tire alteration, or use for racing or competition purposes, insufficient or improper maintenance are not considered manufacturer defects are not able to be covered by the manufacturer warranty.

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how to read motorcycle tires

How to Read Motorcycle Tire SizeMetric Tire Sizes: (Most Common Motorcycle Tire Format) 180/70R-16 : This is the number that you are looking for. The first number (180) is the width of the tire in millimeters. …Alpha Numeric Motorcycle Tire Sizes: MU85B16: This is the Alpha/Numeric sequence you are looking for. …Numeric: (Mostly Dirt Bike,Vintage or Sidecar) 5.00-16: This is the number you are looking for. …

How to tell if motorcycle tires are good?

When To Replace Motorcycle Tiresa) Tread Depth. To ensure that you don’t guess the expected lifespan of your motorcycle tires,manufacturers often add wear bar running across the tire tread.b) Age. As a general rule,the lifespan of your motorcycle tires should not go over and beyond five years. …c) Cracking. …d) Punctures and Cuts. …e) Loss of Pressure. …f) Odd Feeling. …g) Inflation. …

How to tell if your motorcycle tires are worn.?

Wear indicators are available on nearly every tire meant for consumer use, including motorcycle tires. Sometimes a triangle or the letters TWI will be located on the sidewall. These are used to help you find where the wear indicator is located on the tire’s tread. Once the tire is worn down to the point of being on the same level as the wear …

How do you balance a tire on a motorcycle?

Part 2 of 2: Evening the Wheel’s WeightGently spin the tire and wait for it to stop. Give the wheel a spin so it turns 2 or 3 times. …Mark the lowest part of the wheel with tape. Peel off a small piece of masking tape. …Tape a wheel weight to the rim’s top end. …Rotate the wheel to spin it again. …Add and remove weights to balance the wheel. …More items…

How do you read the numbers on tires?

The index is not a hard number; it’s just a symbol of sorts. …To find out how much your entire car can carry without putting undue strain on your tires,multiply the number you found in the Load-Carrying Capacity Per Tire chart by …Never replace your tires with ones that have a lower load index than the original tires. …

What is neat about tires?

One neat element of tires is that they each have specific identification details etched into the sidewall that read when, where, and how the tire was made.

What is the aspect ratio of a tire?

The aspect ratio compares the height of the sidewall to the overall tire width. In other words, an aspect ratio of 55 simply means that the sidewall height is 55% of the total width (180mm).

What is a tire identification number?

The tire identification number tells you exactly who manufactured your tires and when/where they did so. Here is an example of a TIN: The TIN always begins with “DOT” and is followed by the manufacturer code and tire size. In this case, “4B” refers to a specific tire plant, while “08” is the manufacturer’s tire size.

What is R construction?

R: Radial construction – Body plies are laid parallel to one another and perpendicularly to the bead

What is the first number on a tire?

The first number in the tire code designates the section width, or the distance (in millimeters) from sidewall to sidewall. It includes three digits. Consider this example:

How fast can a tire go?

A tire with a speed rating of W can withstand a speed of up to 168 miles per hour. This information gives you a guideline for using your vehicle to haul large loads. If you exceed the load capacity or speed rating recommendations, you could risk damaging your vehicle beyond repair.

How much weight can a tire hold?

The tire size information is proceeded by its speed rating and load index classification: The number 73 refers to the tire’s load index classification, meaning that the tire can hold up to 805 pounds. The higher the load index, the more weight the tire can withstand.

How to read date code on motorcycle tires?

To read the date code on motorcycle tires, you must find the 4-digit part of the DOT code on the sidewall of a tire. The first pair of numbers means the week, and the second pair means the year. source: pitstoparabia.com.

What is the DOT code for tires?

So, if you are wanting to determine the age of a tire with the code 3507 , you should read its manufacture date as the 35 th week of 2007.

How long do motorcycle tires last?

Motorcycle tires usually last for 5 to 10 years, but the golden age, according to most manufacturers, ends at the 6 th year of a tire’s frequent usage. The aging process depends on the environment and usage conditions, type of rubber, purpose of the tire, etc.

Why do tire manufacturers put hazard information in their manuals?

After that, manufacturers started to put the hazard information in their manuals, encouraging people to check the date code.

Do you have to put a tire code on both sides?

For consumers’ convenience and attention, the code is now required to be put on both sides of a tire. This new rule touches on all other parts of the whole tire code, including the sizing of the tire, its load index, speed rate, etc.

Why do motorcycle tires have sidewall codes?

Reading your motorcycle tire sidewall codes initially came about to identify the tires’ maker. But through the years, government legislation demanded safety markings be posted to help buyers know they are getting a legally approved tire.

Why are motorcycle tires important?

Our motorcycle tires are incredibly important. Not only relevant to our safety but also to our motorcycle’s handling. By design, it’s easy to imagine they come with specific compounds, approved safety ratings or markings. These codes are noted on the motorcycle tire sidewall and help riders identify not just sizes, but purchase healthy, approved and correctly certified motorcycle tires.

What is ETRTO in tire?

In Europe, the European Tyre and Rim Technical Organisation ( ETRTO) and the Tire and Rim Association (TRA) are two organisations which influence national tire standards and aim to align national tire and rim standards in Europe. An example would be “E2” – the “E” indicates that the tire conforms to ETRTO standard R75 and the “2” means that the tire was approved for this regulation by the nation of France.

What is 55 on a tire?

55 on the rear tire is the measurement from inside the bead (which sits inside the wheel rim holding the tire within it) to the top of the tire is 55% of the tires width. In this example, 55% of 180 millimetres is 99 millimetres, or 3.9 inches. Same formula for 70 on the front.

What is load index?

Load index and speed rating. The load index is the weight the tire is capable of handling when properly inflated. Most tire manufacturers show on the sidewall what that maximum load is so there is no guessing.

Why is it important to buy the right tire for a motorcycle?

Buying and using the right tire for your specific motorcycle or scooter is very important to its load, speed and overall performance.

What to check when mounting new tires?

There have been cases (usually happening in haste) when the mechanic puts the tire on in the wrong direction. Additionally, check the inflation (PSI) as like under inflation, one of the biggest mistakes people make with their tires is to exceed maximum levels and manufacturer inflation specs leading to poor handling and premature wear.

Tire size

Each motorcycle model requires specific tire sizes that are indicated by the manufacturer in its technical data sheet. It is very important to try to stick to the recommendations for safety and to adhere to the regulations of the road.

Construction

You may have noticed that we are still missing a piece of information from the previous sizes (120/70 ZR 17). These letters indicate the type of internal construction of the tire, whether it is radial or diagonal. If it is radial, it is indicated with a letter R or ZR, while if it is diagonal, it is usually not indicated, i.e.

Load capacity and speed symbol

In this section we are going to look at the load capacity index and the speed category symbol, i.e. numbers and a letter after the tire size.

Other data

If we take a closer look at our tires we will see that there is even more information about them on their sidewall, although with somewhat smaller letters.

How to find tire speed rating?

To find the maximum load and inflation pressure, you’ll need to check the sidewall of the tire. A speed rating also has a letter code, and that is immediately after the width and aspect ratio. It’s part of the three-digit load/speed index. This is on the tire, immediately after the complete size designation. A Z-rated tire has no maximum speed — this rating is for more than 149mph. Check out this table to see what letters correspond with what speed ratings:

How to measure width of bike tire?

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall. If there is any question whether or not a larger than OEM tire will fit your bike, youre encouraged to call Tech Service.

What is bias ply tire?

“Belted” means fiberglass, Kevlar or aramid fiber belts, which has added strength and load capacity. But, if a tire does not have (R), then it is bias-ply, which means that it has multiple, overlapping rubber plies.

What are the factors that determine the size of a motorcycle tire?

There are five main aspects to determining the ideal motorcycle tire sizing: width, aspect ratio , speed rating , tire construction and rim diameter. Let’s take a look at each:

What is an inch tire?

These tires do not have an aspect ratio designation marking. The cross-section tire height is 100% of the width. An inch-sized tire is bias-ply construction and is not belted. However, these are being phased out and are not used on newer motorcycles.

What is metric tire?

Metric. Metric tires are most commonly used and can work for sport bikes, cruisers, touring bikes and others. If there is no speed rating, the “M” will precede the metric size. After the speed rating, there will be a “B” or “R” to indicate if it is belted or radial tire construction.

What is the alpha size on a motorcycle?

The Alpha size designation is most often used for touring motorcycle tires. Even if a tire doesn’t have a“B” designation after the speed rating, it could be belted.

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how to read tire size on motorcycle

How do you read motorcycle tire sizes?THE FIRST NUMBER – WIDTH. The 130 indicates the width of the tire in millimeters.THE SECOND NUMBER – ASPECT RATIO. The second number,the 90,represents how tall a motorcycle tire is in relationship to its width.THE THIRD NUMBER – RIM SIZE. The last number,17,refers to the tire’s rim diameter expressed in inches.

How much does a motorcycle tire weigh?

How much do motorcycle tires weigh compared to other types of tires?On average,passenger car tires weigh between 20 and 22 pounds.Light truck and SUV tires weigh between 35 and 48 pounds.Semi-truck tires weigh between 105 and 115 pounds.RV and motorhome tires weigh about 71 pounds.ATV tires weigh between 19 and 45 pounds.Lawnmower tires weigh about 5 to 7 pounds,on average.Golf cart tires weigh about 10 pounds.More items…

How to tell if your motorcycle tires are worn.?

Wear indicators are available on nearly every tire meant for consumer use, including motorcycle tires. Sometimes a triangle or the letters TWI will be located on the sidewall. These are used to help you find where the wear indicator is located on the tire’s tread. Once the tire is worn down to the point of being on the same level as the wear …

How to measure motorcycle tires?

Motorcycle Tire Sizes ExplainedWidth. The first number or second letter in a tire size represents the nominal width. …Aspect Ratio. You use the aspect ratio to indicate a tire’s cross-sectional profile. …Speed Rating. A speed rating provides the maximum speed at which a tire can be used based on maximum load and inflation pressure.Tire Construction. …Rim Diameter. …

How to read motorcycle tire specs?

Steps Download ArticleRead the manufacturer and the tire name. These are printed in large letters toward the outside of the tire.Look at the service description. The service description,although it doesn’t appear on every tire,is usually right after the manufacturer name.Find the width and aspect ratio. …Know the internal construction of the tire. …Know the rim diameter. …More items…

Tire size

Each motorcycle model requires specific tire sizes that are indicated by the manufacturer in its technical data sheet. It is very important to try to stick to the recommendations for safety and to adhere to the regulations of the road.

Construction

You may have noticed that we are still missing a piece of information from the previous sizes (120/70 ZR 17). These letters indicate the type of internal construction of the tire, whether it is radial or diagonal. If it is radial, it is indicated with a letter R or ZR, while if it is diagonal, it is usually not indicated, i.e.

Load capacity and speed symbol

In this section we are going to look at the load capacity index and the speed category symbol, i.e. numbers and a letter after the tire size.

Other data

If we take a closer look at our tires we will see that there is even more information about them on their sidewall, although with somewhat smaller letters.

How to find tire speed rating?

To find the maximum load and inflation pressure, you’ll need to check the sidewall of the tire. A speed rating also has a letter code, and that is immediately after the width and aspect ratio. It’s part of the three-digit load/speed index. This is on the tire, immediately after the complete size designation. A Z-rated tire has no maximum speed — this rating is for more than 149mph. Check out this table to see what letters correspond with what speed ratings:

How to measure width of bike tire?

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall. If there is any question whether or not a larger than OEM tire will fit your bike, youre encouraged to call Tech Service.

What is bias ply tire?

“Belted” means fiberglass, Kevlar or aramid fiber belts, which has added strength and load capacity. But, if a tire does not have (R), then it is bias-ply, which means that it has multiple, overlapping rubber plies.

What are the factors that determine the size of a motorcycle tire?

There are five main aspects to determining the ideal motorcycle tire sizing: width, aspect ratio , speed rating , tire construction and rim diameter. Let’s take a look at each:

What is an inch tire?

These tires do not have an aspect ratio designation marking. The cross-section tire height is 100% of the width. An inch-sized tire is bias-ply construction and is not belted. However, these are being phased out and are not used on newer motorcycles.

What is metric tire?

Metric. Metric tires are most commonly used and can work for sport bikes, cruisers, touring bikes and others. If there is no speed rating, the “M” will precede the metric size. After the speed rating, there will be a “B” or “R” to indicate if it is belted or radial tire construction.

What is the alpha size on a motorcycle?

The Alpha size designation is most often used for touring motorcycle tires. Even if a tire doesn’t have a“B” designation after the speed rating, it could be belted.

What is an inch tire?

Inches: An older and less common tire rating system that’s used mostly for vintage motorcycle tires, dirt bike tires and sidecar tires.

What are the most important parts of a motorcycle?

Your motorcycle’s tires are among the most important parts of the bike. The size, tread and performance ratings of the tires on your bike will have a huge impact on how your bike handles. But to learn about what any given tire offers, you’ll first need to learn the art of how to read motorcycle tires.

What does load rating mean on a bike?

As you can probably guess, a load rating tells you how much weight a tire is rated to bear safely, and a speed rating tells you the top speed that the tire can safely accommodate . These ratings are extremely important for a safe ride, and you should always check that the tires you’re putting on your bike (or the tires that it comes with when buying it) meet or exceed the combined weight of the bike and rider and the speeds at which you’ll be riding it.

What is a metric tire?

Metric: The most common tire size rating system, used for everything from sport bikes to cruisers.

Can you inflate tires above PSI?

But never inflate tires above their manufacturer’s recommended PSI rating. A tire pressure check should always be part of your standard pre-ride motorcycle inspection.

Motorcycle Tire Sizes Rim Width Chart

British motorcycle rims (Triumph, BSA, Norton etc.) are marked with a letter and number designation. This is helpful to know what tires you can mount on your rim based on the manufacturer’s specs.

Common Motorcycle Tire Sizes Chart

The following chart shows some common tire sizes, including their width and the diameter. Very handy when choosing which tire will fit your bike, or which motorcycle rear fender to buy to fit the tire you want to run on your new build!

Todd Muller

Todd Muller is known for his experience and knowledge of motorcycle mechanics. His specialties include Triumph and Harley-Davidsons, and he has helped thousands of people around the world with everything from how to wire their custom bike to rebuilding an engine.

What is neat about tires?

One neat element of tires is that they each have specific identification details etched into the sidewall that read when, where, and how the tire was made.

What is the aspect ratio of a tire?

The aspect ratio compares the height of the sidewall to the overall tire width. In other words, an aspect ratio of 55 simply means that the sidewall height is 55% of the total width (180mm).

What is a tire identification number?

The tire identification number tells you exactly who manufactured your tires and when/where they did so. Here is an example of a TIN: The TIN always begins with “DOT” and is followed by the manufacturer code and tire size. In this case, “4B” refers to a specific tire plant, while “08” is the manufacturer’s tire size.

What is R construction?

R: Radial construction – Body plies are laid parallel to one another and perpendicularly to the bead

What is the first number on a tire?

The first number in the tire code designates the section width, or the distance (in millimeters) from sidewall to sidewall. It includes three digits. Consider this example:

How fast can a tire go?

A tire with a speed rating of W can withstand a speed of up to 168 miles per hour. This information gives you a guideline for using your vehicle to haul large loads. If you exceed the load capacity or speed rating recommendations, you could risk damaging your vehicle beyond repair.

How much weight can a tire hold?

The tire size information is proceeded by its speed rating and load index classification: The number 73 refers to the tire’s load index classification, meaning that the tire can hold up to 805 pounds. The higher the load index, the more weight the tire can withstand.

How many inches does a 150mm tire need to be on a rim?

Squeezing a 150mm tire (lets go back to that tire chart) … 150 = 6 inches onto a rim that was meant to accept a 130mm wide tire = 5.0 inches will pinch in the sidewall out and will cause an extreme arc in the side tread of the tire. This tire will now "fall very fast" into corners and will have much less of a contact patch, or rubber on the road in the corner. Not good!

What are bias ply tires made of?

Bias Ply tires were the original and they are best suited for heavy duty loads, and that is why we see them on most heavy cruiser and touring motorcycle applications. Bias Ply tires are made of layers of cords laid down from bead to bead running across the tire in alternating layers made up of materials such as Nylon, Rayon or Polyester. This makes for a very stiff sidewall, which will bear much weight, but the tires get hot, and are less nimble than their newer Radial brothers and sisters.

What is radial tire?

Radial Tires, which came to the motorcycle world in very limited applications in the 1980’s, run their layers across the tire radially and are typically made of steel. These alternating layers of steel belts are stacked in the tread area of the tire only. Steel belts dissipate heat quicker than bias cords and the sidewalls of radial tires are thinner and more flexible allowing the tire to be more nimble and provide more rider feedback than a Bias Ply tire.

Why do tires have balance dots?

Balance dots appear on most street oriented tires. Balance dots are placed by the tire manufacture to indicate the lightest part of the tire. As a rule of thumb, when mounting the tire, it is best to line this dot up with the valve stem. This should require "less weight" to be added in order to get the tire / wheel combo balanced. All street or track bound tires should be balanced to ensure the best stability at speed, to promote even tire wear and to maximize mileage.

What kind of tires does Chaparral have?

Chaparral Motorsports has all kinds of motorcycle tires ! We have hard compound, soft compound, intermediate compounds. Wide White Wall, Narrow White Wall, super sticky tires and high mileage tires, 100% street tires, 100% dirt tires and everything in between 80/20, 70/30, and even 50/50. But none of that matters if you don’t know what motorcycle tire fits your bike . Fitment isn’t just about size, there are several other factors to consider, so lets dive in. But first if you’re the type of person that would rather watch the move than read the book check out this video on our YouTube channe l which covers everything below.

Why is it important to choose a tire?

Just because a tire is the right size and is cheap… does not mean that it will be able to "carry the load" you will throw at it or be able to "sustain the speeds you travel.".

What is the MU of a tire?

The first set of letters is the width. MU = 140 millimeters. Reference a Street Tire Size Conversion Chart for all of the Letter Designation Breakdowns.

How to convert 285mm to inches?

To convert 285mm to inches you divide 285 by 25.4 to get 11.22". So the width of a 285mm tire is 11.22". The next number represents the percentage of the width (285mm or 11.22") that is the sidewall height of the tire. In this example the side wall height of the tire would be 75% of 11.22" which is 8.41" or 214mm.

How to read tire size?

There are two ways that tire manufacturers display tire size, inches and metric. How to read tire size in inches is very straight forward. Example A : 33X12.50R15 The first number is your overall diameter of the tire. In this example the tire diameter or "height" is 33 inches tall. The second number represents the width of the tire. In most cases with inch measurement tires the width will have a .50 decimal after the initial number. In example "A" this reads 12.50, meaning the tire width is 12 and 1/2 inches. The final number simply is the wheel size or "diameter" of the wheel that the tire will fit on.

What is the final number of a tire?

The final number simply is the wheel size or "diameter" of the wheel that the tire will fit on. How to read tire size with a metric measurement is a little more difficult and usually takes a calculator to get exactly right.

What does the second number mean on a tire?

The second number represents the width of the tire. In most cases with inch measurement tires the width will have a .50 decimal after the initial number. In example "A" this reads 12.50, meaning the tire width is 12 and 1/2 inches.

What is a LT tire?

The tire is designed to be mounted on an 15 inch wheel diameter. Tire Class : LT. The tire class of this tire size is ‘LT’ which means it is a Light Truck tire.

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how to read motorcycle tire sizes

How do you read motorcycle tire sizes?THE FIRST NUMBER – WIDTH. The 130 indicates the width of the tire in millimeters.THE SECOND NUMBER – ASPECT RATIO. The second number,the 90,represents how tall a motorcycle tire is in relationship to its width.THE THIRD NUMBER – RIM SIZE. The last number,17,refers to the tire’s rim diameter expressed in inches.

How much does a motorcycle tire weigh?

How much do motorcycle tires weigh compared to other types of tires?On average,passenger car tires weigh between 20 and 22 pounds.Light truck and SUV tires weigh between 35 and 48 pounds.Semi-truck tires weigh between 105 and 115 pounds.RV and motorhome tires weigh about 71 pounds.ATV tires weigh between 19 and 45 pounds.Lawnmower tires weigh about 5 to 7 pounds,on average.Golf cart tires weigh about 10 pounds.More items…

How to tell if your motorcycle tires are worn.?

Wear indicators are available on nearly every tire meant for consumer use, including motorcycle tires. Sometimes a triangle or the letters TWI will be located on the sidewall. These are used to help you find where the wear indicator is located on the tire’s tread. Once the tire is worn down to the point of being on the same level as the wear …

How to measure motorcycle tires?

Motorcycle Tire Sizes ExplainedWidth. The first number or second letter in a tire size represents the nominal width. …Aspect Ratio. You use the aspect ratio to indicate a tire’s cross-sectional profile. …Speed Rating. A speed rating provides the maximum speed at which a tire can be used based on maximum load and inflation pressure.Tire Construction. …Rim Diameter. …

How to read motorcycle tire specs?

Steps Download ArticleRead the manufacturer and the tire name. These are printed in large letters toward the outside of the tire.Look at the service description. The service description,although it doesn’t appear on every tire,is usually right after the manufacturer name.Find the width and aspect ratio. …Know the internal construction of the tire. …Know the rim diameter. …More items…

How to find tire speed rating?

To find the maximum load and inflation pressure, you’ll need to check the sidewall of the tire. A speed rating also has a letter code, and that is immediately after the width and aspect ratio. It’s part of the three-digit load/speed index. This is on the tire, immediately after the complete size designation. A Z-rated tire has no maximum speed — this rating is for more than 149mph. Check out this table to see what letters correspond with what speed ratings:

How to measure width of bike tire?

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall. If there is any question whether or not a larger than OEM tire will fit your bike, youre encouraged to call Tech Service.

What is bias ply tire?

“Belted” means fiberglass, Kevlar or aramid fiber belts, which has added strength and load capacity. But, if a tire does not have (R), then it is bias-ply, which means that it has multiple, overlapping rubber plies.

What are the factors that determine the size of a motorcycle tire?

There are five main aspects to determining the ideal motorcycle tire sizing: width, aspect ratio , speed rating , tire construction and rim diameter. Let’s take a look at each:

What is an inch tire?

These tires do not have an aspect ratio designation marking. The cross-section tire height is 100% of the width. An inch-sized tire is bias-ply construction and is not belted. However, these are being phased out and are not used on newer motorcycles.

What is metric tire?

Metric. Metric tires are most commonly used and can work for sport bikes, cruisers, touring bikes and others. If there is no speed rating, the “M” will precede the metric size. After the speed rating, there will be a “B” or “R” to indicate if it is belted or radial tire construction.

What is the alpha size on a motorcycle?

The Alpha size designation is most often used for touring motorcycle tires. Even if a tire doesn’t have a“B” designation after the speed rating, it could be belted.

Tire size

Each motorcycle model requires specific tire sizes that are indicated by the manufacturer in its technical data sheet. It is very important to try to stick to the recommendations for safety and to adhere to the regulations of the road.

Construction

You may have noticed that we are still missing a piece of information from the previous sizes (120/70 ZR 17). These letters indicate the type of internal construction of the tire, whether it is radial or diagonal. If it is radial, it is indicated with a letter R or ZR, while if it is diagonal, it is usually not indicated, i.e.

Load capacity and speed symbol

In this section we are going to look at the load capacity index and the speed category symbol, i.e. numbers and a letter after the tire size.

Other data

If we take a closer look at our tires we will see that there is even more information about them on their sidewall, although with somewhat smaller letters.

Motorcycle Tire Sizes Rim Width Chart

British motorcycle rims (Triumph, BSA, Norton etc.) are marked with a letter and number designation. This is helpful to know what tires you can mount on your rim based on the manufacturer’s specs.

Common Motorcycle Tire Sizes Chart

The following chart shows some common tire sizes, including their width and the diameter. Very handy when choosing which tire will fit your bike, or which motorcycle rear fender to buy to fit the tire you want to run on your new build!

Todd Muller

Todd Muller is known for his experience and knowledge of motorcycle mechanics. His specialties include Triumph and Harley-Davidsons, and he has helped thousands of people around the world with everything from how to wire their custom bike to rebuilding an engine.

What is neat about tires?

One neat element of tires is that they each have specific identification details etched into the sidewall that read when, where, and how the tire was made.

What is the aspect ratio of a tire?

The aspect ratio compares the height of the sidewall to the overall tire width. In other words, an aspect ratio of 55 simply means that the sidewall height is 55% of the total width (180mm).

What is a tire identification number?

The tire identification number tells you exactly who manufactured your tires and when/where they did so. Here is an example of a TIN: The TIN always begins with “DOT” and is followed by the manufacturer code and tire size. In this case, “4B” refers to a specific tire plant, while “08” is the manufacturer’s tire size.

What is R construction?

R: Radial construction – Body plies are laid parallel to one another and perpendicularly to the bead

What is the first number on a tire?

The first number in the tire code designates the section width, or the distance (in millimeters) from sidewall to sidewall. It includes three digits. Consider this example:

How fast can a tire go?

A tire with a speed rating of W can withstand a speed of up to 168 miles per hour. This information gives you a guideline for using your vehicle to haul large loads. If you exceed the load capacity or speed rating recommendations, you could risk damaging your vehicle beyond repair.

How much weight can a tire hold?

The tire size information is proceeded by its speed rating and load index classification: The number 73 refers to the tire’s load index classification, meaning that the tire can hold up to 805 pounds. The higher the load index, the more weight the tire can withstand.

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how to read a motorcycle tire

How to Read Motorcycle Tires1. Tire Size First,you need to know how to determine if a tire is the correct size for your motorcycle. …2. Radial vs. Bias Ply The “B” or “R” in a standard metric or alphanumeric tire rating will tell you which of the two major tire types you’re looking at. …3. Tire Load Rating and Tire Speed Rating …4. Recommended PSI …

How to tell if motorcycle tires are good?

When To Replace Motorcycle Tiresa) Tread Depth. To ensure that you don’t guess the expected lifespan of your motorcycle tires,manufacturers often add wear bar running across the tire tread.b) Age. As a general rule,the lifespan of your motorcycle tires should not go over and beyond five years. …c) Cracking. …d) Punctures and Cuts. …e) Loss of Pressure. …f) Odd Feeling. …g) Inflation. …

How to tell if your motorcycle tires are worn.?

Wear indicators are available on nearly every tire meant for consumer use, including motorcycle tires. Sometimes a triangle or the letters TWI will be located on the sidewall. These are used to help you find where the wear indicator is located on the tire’s tread. Once the tire is worn down to the point of being on the same level as the wear …

How do you balance a tire on a motorcycle?

Part 2 of 2: Evening the Wheel’s WeightGently spin the tire and wait for it to stop. Give the wheel a spin so it turns 2 or 3 times. …Mark the lowest part of the wheel with tape. Peel off a small piece of masking tape. …Tape a wheel weight to the rim’s top end. …Rotate the wheel to spin it again. …Add and remove weights to balance the wheel. …More items…

How do you read the numbers on tires?

The index is not a hard number; it’s just a symbol of sorts. …To find out how much your entire car can carry without putting undue strain on your tires,multiply the number you found in the Load-Carrying Capacity Per Tire chart by …Never replace your tires with ones that have a lower load index than the original tires. …

What is an inch tire?

Inches: An older and less common tire rating system that’s used mostly for vintage motorcycle tires, dirt bike tires and sidecar tires.

What are the most important parts of a motorcycle?

Your motorcycle’s tires are among the most important parts of the bike. The size, tread and performance ratings of the tires on your bike will have a huge impact on how your bike handles. But to learn about what any given tire offers, you’ll first need to learn the art of how to read motorcycle tires.

What does load rating mean on a bike?

As you can probably guess, a load rating tells you how much weight a tire is rated to bear safely, and a speed rating tells you the top speed that the tire can safely accommodate . These ratings are extremely important for a safe ride, and you should always check that the tires you’re putting on your bike (or the tires that it comes with when buying it) meet or exceed the combined weight of the bike and rider and the speeds at which you’ll be riding it.

What is a metric tire?

Metric: The most common tire size rating system, used for everything from sport bikes to cruisers.

Can you inflate tires above PSI?

But never inflate tires above their manufacturer’s recommended PSI rating. A tire pressure check should always be part of your standard pre-ride motorcycle inspection.

What is neat about tires?

One neat element of tires is that they each have specific identification details etched into the sidewall that read when, where, and how the tire was made.

What is the aspect ratio of a tire?

The aspect ratio compares the height of the sidewall to the overall tire width. In other words, an aspect ratio of 55 simply means that the sidewall height is 55% of the total width (180mm).

What is a tire identification number?

The tire identification number tells you exactly who manufactured your tires and when/where they did so. Here is an example of a TIN: The TIN always begins with “DOT” and is followed by the manufacturer code and tire size. In this case, “4B” refers to a specific tire plant, while “08” is the manufacturer’s tire size.

What is R construction?

R: Radial construction – Body plies are laid parallel to one another and perpendicularly to the bead

What is the first number on a tire?

The first number in the tire code designates the section width, or the distance (in millimeters) from sidewall to sidewall. It includes three digits. Consider this example:

How fast can a tire go?

A tire with a speed rating of W can withstand a speed of up to 168 miles per hour. This information gives you a guideline for using your vehicle to haul large loads. If you exceed the load capacity or speed rating recommendations, you could risk damaging your vehicle beyond repair.

How much weight can a tire hold?

The tire size information is proceeded by its speed rating and load index classification: The number 73 refers to the tire’s load index classification, meaning that the tire can hold up to 805 pounds. The higher the load index, the more weight the tire can withstand.

How to read date code on motorcycle tires?

To read the date code on motorcycle tires, you must find the 4-digit part of the DOT code on the sidewall of a tire. The first pair of numbers means the week, and the second pair means the year. source: pitstoparabia.com.

What is the DOT code for tires?

So, if you are wanting to determine the age of a tire with the code 3507 , you should read its manufacture date as the 35 th week of 2007.

How long do motorcycle tires last?

Motorcycle tires usually last for 5 to 10 years, but the golden age, according to most manufacturers, ends at the 6 th year of a tire’s frequent usage. The aging process depends on the environment and usage conditions, type of rubber, purpose of the tire, etc.

Why do tire manufacturers put hazard information in their manuals?

After that, manufacturers started to put the hazard information in their manuals, encouraging people to check the date code.

Do you have to put a tire code on both sides?

For consumers’ convenience and attention, the code is now required to be put on both sides of a tire. This new rule touches on all other parts of the whole tire code, including the sizing of the tire, its load index, speed rate, etc.

Why do motorcycle tires have sidewall codes?

Reading your motorcycle tire sidewall codes initially came about to identify the tires’ maker. But through the years, government legislation demanded safety markings be posted to help buyers know they are getting a legally approved tire.

Why are motorcycle tires important?

Our motorcycle tires are incredibly important. Not only relevant to our safety but also to our motorcycle’s handling. By design, it’s easy to imagine they come with specific compounds, approved safety ratings or markings. These codes are noted on the motorcycle tire sidewall and help riders identify not just sizes, but purchase healthy, approved and correctly certified motorcycle tires.

What is ETRTO in tire?

In Europe, the European Tyre and Rim Technical Organisation ( ETRTO) and the Tire and Rim Association (TRA) are two organisations which influence national tire standards and aim to align national tire and rim standards in Europe. An example would be “E2” – the “E” indicates that the tire conforms to ETRTO standard R75 and the “2” means that the tire was approved for this regulation by the nation of France.

What is 55 on a tire?

55 on the rear tire is the measurement from inside the bead (which sits inside the wheel rim holding the tire within it) to the top of the tire is 55% of the tires width. In this example, 55% of 180 millimetres is 99 millimetres, or 3.9 inches. Same formula for 70 on the front.

What is load index?

Load index and speed rating. The load index is the weight the tire is capable of handling when properly inflated. Most tire manufacturers show on the sidewall what that maximum load is so there is no guessing.

Why is it important to buy the right tire for a motorcycle?

Buying and using the right tire for your specific motorcycle or scooter is very important to its load, speed and overall performance.

What to check when mounting new tires?

There have been cases (usually happening in haste) when the mechanic puts the tire on in the wrong direction. Additionally, check the inflation (PSI) as like under inflation, one of the biggest mistakes people make with their tires is to exceed maximum levels and manufacturer inflation specs leading to poor handling and premature wear.

Tire size

Each motorcycle model requires specific tire sizes that are indicated by the manufacturer in its technical data sheet. It is very important to try to stick to the recommendations for safety and to adhere to the regulations of the road.

Construction

You may have noticed that we are still missing a piece of information from the previous sizes (120/70 ZR 17). These letters indicate the type of internal construction of the tire, whether it is radial or diagonal. If it is radial, it is indicated with a letter R or ZR, while if it is diagonal, it is usually not indicated, i.e.

Load capacity and speed symbol

In this section we are going to look at the load capacity index and the speed category symbol, i.e. numbers and a letter after the tire size.

Other data

If we take a closer look at our tires we will see that there is even more information about them on their sidewall, although with somewhat smaller letters.

Treadwear indicator

The first thing you should check is the tire wear indicator (TWI), which is a triangle imprinted on the side of the tire. It points to a line of rubber that is built into the tire that runs across the tread. If you notice this line is level with the top of the tread grooves, you will need to replace the tire.

Other types of wear

Motorcycle Tire Wear can indicate a number of issues. For instance, if the center of the tire is more worn than the edges, the tires may be overinflated. Conversely, underinflated tires will have worn edges. When your tires are underinflated, make sure to keep an eye on the pressure when you refill them.

Where to find the tire code

So how can you tell when your motorcycle tires reach their sixth birthday? You don’t have to play guessing games to figure it out – the information is all right in front of you, on the sidewall of each tire. Look on the outer sidewall for the acronym “DOT,” which should be followed by a series of numbers.

Deciphering the numbers

You may need to grab a calculator to figure out the age of a tire. For example, a tire with the digits 2510 was made in the 25th week of 2010. Instead of grabbing a calendar and counting out the weeks to determine the month, you can simply divide the number of weeks by 4.3. In this case, the tire would have been made in June 2010.

How to find tire speed rating?

To find the maximum load and inflation pressure, you’ll need to check the sidewall of the tire. A speed rating also has a letter code, and that is immediately after the width and aspect ratio. It’s part of the three-digit load/speed index. This is on the tire, immediately after the complete size designation. A Z-rated tire has no maximum speed — this rating is for more than 149mph. Check out this table to see what letters correspond with what speed ratings:

How to measure width of bike tire?

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall. If there is any question whether or not a larger than OEM tire will fit your bike, youre encouraged to call Tech Service.

What is bias ply tire?

“Belted” means fiberglass, Kevlar or aramid fiber belts, which has added strength and load capacity. But, if a tire does not have (R), then it is bias-ply, which means that it has multiple, overlapping rubber plies.

What are the factors that determine the size of a motorcycle tire?

There are five main aspects to determining the ideal motorcycle tire sizing: width, aspect ratio , speed rating , tire construction and rim diameter. Let’s take a look at each:

What is an inch tire?

These tires do not have an aspect ratio designation marking. The cross-section tire height is 100% of the width. An inch-sized tire is bias-ply construction and is not belted. However, these are being phased out and are not used on newer motorcycles.

What is metric tire?

Metric. Metric tires are most commonly used and can work for sport bikes, cruisers, touring bikes and others. If there is no speed rating, the “M” will precede the metric size. After the speed rating, there will be a “B” or “R” to indicate if it is belted or radial tire construction.

What is the alpha size on a motorcycle?

The Alpha size designation is most often used for touring motorcycle tires. Even if a tire doesn’t have a“B” designation after the speed rating, it could be belted.

No Comments

how to read motorcycle tire size

How do you read motorcycle tire sizes?THE FIRST NUMBER – WIDTH. The 130 indicates the width of the tire in millimeters.THE SECOND NUMBER – ASPECT RATIO. The second number,the 90,represents how tall a motorcycle tire is in relationship to its width.THE THIRD NUMBER – RIM SIZE. The last number,17,refers to the tire’s rim diameter expressed in inches.

How much does a motorcycle tire weigh?

How much do motorcycle tires weigh compared to other types of tires?On average,passenger car tires weigh between 20 and 22 pounds.Light truck and SUV tires weigh between 35 and 48 pounds.Semi-truck tires weigh between 105 and 115 pounds.RV and motorhome tires weigh about 71 pounds.ATV tires weigh between 19 and 45 pounds.Lawnmower tires weigh about 5 to 7 pounds,on average.Golf cart tires weigh about 10 pounds.More items…

How to tell if your motorcycle tires are worn.?

Wear indicators are available on nearly every tire meant for consumer use, including motorcycle tires. Sometimes a triangle or the letters TWI will be located on the sidewall. These are used to help you find where the wear indicator is located on the tire’s tread. Once the tire is worn down to the point of being on the same level as the wear …

How to measure motorcycle tires?

Motorcycle Tire Sizes ExplainedWidth. The first number or second letter in a tire size represents the nominal width. …Aspect Ratio. You use the aspect ratio to indicate a tire’s cross-sectional profile. …Speed Rating. A speed rating provides the maximum speed at which a tire can be used based on maximum load and inflation pressure.Tire Construction. …Rim Diameter. …

How to read motorcycle tire specs?

Steps Download ArticleRead the manufacturer and the tire name. These are printed in large letters toward the outside of the tire.Look at the service description. The service description,although it doesn’t appear on every tire,is usually right after the manufacturer name.Find the width and aspect ratio. …Know the internal construction of the tire. …Know the rim diameter. …More items…

How to find tire speed rating?

To find the maximum load and inflation pressure, you’ll need to check the sidewall of the tire. A speed rating also has a letter code, and that is immediately after the width and aspect ratio. It’s part of the three-digit load/speed index. This is on the tire, immediately after the complete size designation. A Z-rated tire has no maximum speed — this rating is for more than 149mph. Check out this table to see what letters correspond with what speed ratings:

How to measure width of bike tire?

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall. If there is any question whether or not a larger than OEM tire will fit your bike, youre encouraged to call Tech Service.

What is bias ply tire?

“Belted” means fiberglass, Kevlar or aramid fiber belts, which has added strength and load capacity. But, if a tire does not have (R), then it is bias-ply, which means that it has multiple, overlapping rubber plies.

What are the factors that determine the size of a motorcycle tire?

There are five main aspects to determining the ideal motorcycle tire sizing: width, aspect ratio , speed rating , tire construction and rim diameter. Let’s take a look at each:

What is an inch tire?

These tires do not have an aspect ratio designation marking. The cross-section tire height is 100% of the width. An inch-sized tire is bias-ply construction and is not belted. However, these are being phased out and are not used on newer motorcycles.

What is metric tire?

Metric. Metric tires are most commonly used and can work for sport bikes, cruisers, touring bikes and others. If there is no speed rating, the “M” will precede the metric size. After the speed rating, there will be a “B” or “R” to indicate if it is belted or radial tire construction.

What is the alpha size on a motorcycle?

The Alpha size designation is most often used for touring motorcycle tires. Even if a tire doesn’t have a“B” designation after the speed rating, it could be belted.

Tire size

Each motorcycle model requires specific tire sizes that are indicated by the manufacturer in its technical data sheet. It is very important to try to stick to the recommendations for safety and to adhere to the regulations of the road.

Construction

You may have noticed that we are still missing a piece of information from the previous sizes (120/70 ZR 17). These letters indicate the type of internal construction of the tire, whether it is radial or diagonal. If it is radial, it is indicated with a letter R or ZR, while if it is diagonal, it is usually not indicated, i.e.

Load capacity and speed symbol

In this section we are going to look at the load capacity index and the speed category symbol, i.e. numbers and a letter after the tire size.

Other data

If we take a closer look at our tires we will see that there is even more information about them on their sidewall, although with somewhat smaller letters.

Motorcycle Tire Sizes Rim Width Chart

British motorcycle rims (Triumph, BSA, Norton etc.) are marked with a letter and number designation. This is helpful to know what tires you can mount on your rim based on the manufacturer’s specs.

Common Motorcycle Tire Sizes Chart

The following chart shows some common tire sizes, including their width and the diameter. Very handy when choosing which tire will fit your bike, or which motorcycle rear fender to buy to fit the tire you want to run on your new build!

Todd Muller

Todd Muller is known for his experience and knowledge of motorcycle mechanics. His specialties include Triumph and Harley-Davidsons, and he has helped thousands of people around the world with everything from how to wire their custom bike to rebuilding an engine.

What is neat about tires?

One neat element of tires is that they each have specific identification details etched into the sidewall that read when, where, and how the tire was made.

What is the aspect ratio of a tire?

The aspect ratio compares the height of the sidewall to the overall tire width. In other words, an aspect ratio of 55 simply means that the sidewall height is 55% of the total width (180mm).

What is a tire identification number?

The tire identification number tells you exactly who manufactured your tires and when/where they did so. Here is an example of a TIN: The TIN always begins with “DOT” and is followed by the manufacturer code and tire size. In this case, “4B” refers to a specific tire plant, while “08” is the manufacturer’s tire size.

What is R construction?

R: Radial construction – Body plies are laid parallel to one another and perpendicularly to the bead

What is the first number on a tire?

The first number in the tire code designates the section width, or the distance (in millimeters) from sidewall to sidewall. It includes three digits. Consider this example:

How fast can a tire go?

A tire with a speed rating of W can withstand a speed of up to 168 miles per hour. This information gives you a guideline for using your vehicle to haul large loads. If you exceed the load capacity or speed rating recommendations, you could risk damaging your vehicle beyond repair.

How much weight can a tire hold?

The tire size information is proceeded by its speed rating and load index classification: The number 73 refers to the tire’s load index classification, meaning that the tire can hold up to 805 pounds. The higher the load index, the more weight the tire can withstand.

How many inches does a 150mm tire need to be on a rim?

Squeezing a 150mm tire (lets go back to that tire chart) … 150 = 6 inches onto a rim that was meant to accept a 130mm wide tire = 5.0 inches will pinch in the sidewall out and will cause an extreme arc in the side tread of the tire. This tire will now "fall very fast" into corners and will have much less of a contact patch, or rubber on the road in the corner. Not good!

What are bias ply tires made of?

Bias Ply tires were the original and they are best suited for heavy duty loads, and that is why we see them on most heavy cruiser and touring motorcycle applications. Bias Ply tires are made of layers of cords laid down from bead to bead running across the tire in alternating layers made up of materials such as Nylon, Rayon or Polyester. This makes for a very stiff sidewall, which will bear much weight, but the tires get hot, and are less nimble than their newer Radial brothers and sisters.

What is radial tire?

Radial Tires, which came to the motorcycle world in very limited applications in the 1980’s, run their layers across the tire radially and are typically made of steel. These alternating layers of steel belts are stacked in the tread area of the tire only. Steel belts dissipate heat quicker than bias cords and the sidewalls of radial tires are thinner and more flexible allowing the tire to be more nimble and provide more rider feedback than a Bias Ply tire.

Why do tires have balance dots?

Balance dots appear on most street oriented tires. Balance dots are placed by the tire manufacture to indicate the lightest part of the tire. As a rule of thumb, when mounting the tire, it is best to line this dot up with the valve stem. This should require "less weight" to be added in order to get the tire / wheel combo balanced. All street or track bound tires should be balanced to ensure the best stability at speed, to promote even tire wear and to maximize mileage.

What kind of tires does Chaparral have?

Chaparral Motorsports has all kinds of motorcycle tires ! We have hard compound, soft compound, intermediate compounds. Wide White Wall, Narrow White Wall, super sticky tires and high mileage tires, 100% street tires, 100% dirt tires and everything in between 80/20, 70/30, and even 50/50. But none of that matters if you don’t know what motorcycle tire fits your bike . Fitment isn’t just about size, there are several other factors to consider, so lets dive in. But first if you’re the type of person that would rather watch the move than read the book check out this video on our YouTube channe l which covers everything below.

Why is it important to choose a tire?

Just because a tire is the right size and is cheap… does not mean that it will be able to "carry the load" you will throw at it or be able to "sustain the speeds you travel.".

What is the MU of a tire?

The first set of letters is the width. MU = 140 millimeters. Reference a Street Tire Size Conversion Chart for all of the Letter Designation Breakdowns.

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how to read a motorcycle tire size

How do you read motorcycle tire sizes?THE FIRST NUMBER – WIDTH. The 130 indicates the width of the tire in millimeters.THE SECOND NUMBER – ASPECT RATIO. The second number,the 90,represents how tall a motorcycle tire is in relationship to its width.THE THIRD NUMBER – RIM SIZE. The last number,17,refers to the tire’s rim diameter expressed in inches.

How much does a motorcycle tire weigh?

How much do motorcycle tires weigh compared to other types of tires?On average,passenger car tires weigh between 20 and 22 pounds.Light truck and SUV tires weigh between 35 and 48 pounds.Semi-truck tires weigh between 105 and 115 pounds.RV and motorhome tires weigh about 71 pounds.ATV tires weigh between 19 and 45 pounds.Lawnmower tires weigh about 5 to 7 pounds,on average.Golf cart tires weigh about 10 pounds.More items…

How to tell if your motorcycle tires are worn.?

Wear indicators are available on nearly every tire meant for consumer use, including motorcycle tires. Sometimes a triangle or the letters TWI will be located on the sidewall. These are used to help you find where the wear indicator is located on the tire’s tread. Once the tire is worn down to the point of being on the same level as the wear …

How to measure motorcycle tires?

Motorcycle Tire Sizes ExplainedWidth. The first number or second letter in a tire size represents the nominal width. …Aspect Ratio. You use the aspect ratio to indicate a tire’s cross-sectional profile. …Speed Rating. A speed rating provides the maximum speed at which a tire can be used based on maximum load and inflation pressure.Tire Construction. …Rim Diameter. …

How to read motorcycle tire specs?

Steps Download ArticleRead the manufacturer and the tire name. These are printed in large letters toward the outside of the tire.Look at the service description. The service description,although it doesn’t appear on every tire,is usually right after the manufacturer name.Find the width and aspect ratio. …Know the internal construction of the tire. …Know the rim diameter. …More items…

How to find tire speed rating?

To find the maximum load and inflation pressure, you’ll need to check the sidewall of the tire. A speed rating also has a letter code, and that is immediately after the width and aspect ratio. It’s part of the three-digit load/speed index. This is on the tire, immediately after the complete size designation. A Z-rated tire has no maximum speed — this rating is for more than 149mph. Check out this table to see what letters correspond with what speed ratings:

How to measure width of bike tire?

Width is measured in a straight line from the furthest point on one sidewall, across the tread, to the furthest point on the opposite sidewall. If there is any question whether or not a larger than OEM tire will fit your bike, youre encouraged to call Tech Service.

What is bias ply tire?

“Belted” means fiberglass, Kevlar or aramid fiber belts, which has added strength and load capacity. But, if a tire does not have (R), then it is bias-ply, which means that it has multiple, overlapping rubber plies.

What are the factors that determine the size of a motorcycle tire?

There are five main aspects to determining the ideal motorcycle tire sizing: width, aspect ratio , speed rating , tire construction and rim diameter. Let’s take a look at each:

What is an inch tire?

These tires do not have an aspect ratio designation marking. The cross-section tire height is 100% of the width. An inch-sized tire is bias-ply construction and is not belted. However, these are being phased out and are not used on newer motorcycles.

What is metric tire?

Metric. Metric tires are most commonly used and can work for sport bikes, cruisers, touring bikes and others. If there is no speed rating, the “M” will precede the metric size. After the speed rating, there will be a “B” or “R” to indicate if it is belted or radial tire construction.

What is the alpha size on a motorcycle?

The Alpha size designation is most often used for touring motorcycle tires. Even if a tire doesn’t have a“B” designation after the speed rating, it could be belted.

Tire size

Each motorcycle model requires specific tire sizes that are indicated by the manufacturer in its technical data sheet. It is very important to try to stick to the recommendations for safety and to adhere to the regulations of the road.

Construction

You may have noticed that we are still missing a piece of information from the previous sizes (120/70 ZR 17). These letters indicate the type of internal construction of the tire, whether it is radial or diagonal. If it is radial, it is indicated with a letter R or ZR, while if it is diagonal, it is usually not indicated, i.e.

Load capacity and speed symbol

In this section we are going to look at the load capacity index and the speed category symbol, i.e. numbers and a letter after the tire size.

Other data

If we take a closer look at our tires we will see that there is even more information about them on their sidewall, although with somewhat smaller letters.

What is an inch tire?

Inches: An older and less common tire rating system that’s used mostly for vintage motorcycle tires, dirt bike tires and sidecar tires.

What are the most important parts of a motorcycle?

Your motorcycle’s tires are among the most important parts of the bike. The size, tread and performance ratings of the tires on your bike will have a huge impact on how your bike handles. But to learn about what any given tire offers, you’ll first need to learn the art of how to read motorcycle tires.

What does load rating mean on a bike?

As you can probably guess, a load rating tells you how much weight a tire is rated to bear safely, and a speed rating tells you the top speed that the tire can safely accommodate . These ratings are extremely important for a safe ride, and you should always check that the tires you’re putting on your bike (or the tires that it comes with when buying it) meet or exceed the combined weight of the bike and rider and the speeds at which you’ll be riding it.

What is a metric tire?

Metric: The most common tire size rating system, used for everything from sport bikes to cruisers.

Can you inflate tires above PSI?

But never inflate tires above their manufacturer’s recommended PSI rating. A tire pressure check should always be part of your standard pre-ride motorcycle inspection.

Motorcycle Tire Sizes Rim Width Chart

British motorcycle rims (Triumph, BSA, Norton etc.) are marked with a letter and number designation. This is helpful to know what tires you can mount on your rim based on the manufacturer’s specs.

Common Motorcycle Tire Sizes Chart

The following chart shows some common tire sizes, including their width and the diameter. Very handy when choosing which tire will fit your bike, or which motorcycle rear fender to buy to fit the tire you want to run on your new build!

Todd Muller

Todd Muller is known for his experience and knowledge of motorcycle mechanics. His specialties include Triumph and Harley-Davidsons, and he has helped thousands of people around the world with everything from how to wire their custom bike to rebuilding an engine.

What is the first number on a tire?

The first number in the tire code designates the section width, or the distance (in millimeters) from sidewall to sidewall. It includes three digits. Consider this example:

How much weight can a tire hold?

The tire size information is proceeded by its speed rating and load index classification: The number 73 refers to the tire’s load index classification, meaning that the tire can hold up to 805 pounds. The higher the load index, the more weight the tire can withstand.

What is the aspect ratio of a tire?

The aspect ratio compares the height of the sidewall to the overall tire width. In other words, an aspect ratio of 55 simply means that the sidewall height is 55% of the total width (180mm).

What is a tire identification number?

The tire identification number tells you exactly who manufactured your tires and when/where they did so. Here is an example of a TIN: The TIN always begins with “DOT” and is followed by the manufacturer code and tire size. In this case, “4B” refers to a specific tire plant, while “08” is the manufacturer’s tire size.

How fast can a tire go?

A tire with a speed rating of W can withstand a speed of up to 168 miles per hour. This information gives you a guideline for using your vehicle to haul large loads. If you exceed the load capacity or speed rating recommendations, you could risk damaging your vehicle beyond repair.

Where is the TIN on a tire?

Each tire has a TIN imprinted on one of its sidewalls where retailers and consumers can easily locate important information. Learning how to read a tire sidewall is a useful skill to have whether you are purchasing new tires, considering replacing your current tires, or deciding if you should use an old set of tires.

What is neat about tires?

One neat element of tires is that they each have specific identification details etched into the sidewall that read when, where, and how the tire was made.

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