If your dimension is in inches, multiply by 25.4 . This is represented as a percentage of the width of the tyre. Online shopping for Automotive from a great selection of Motorcycle, Scooter & more at everyday low prices. Looking for some input on tire size and selection, specifically the aspect ratio. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. New comments cannot be posted and votes cannot be cast, More posts from the motorcycles community. E-Gift Cards are excempt from discounts. 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. Rim Widths British motorcycle rims (Triumph, BSA, Norton etc.) A 180/70B16 is 180mm wide and 126mm high. The tire size will also indicate what size rim strip and motorcycle inner tube is needed. Parameters include width, circumference, aspect ratio, diameter, radius, wheel diameter, speed and sidewall height of metric and standard tires. Any additional items purchased ship free. All of the pricing for mounting and balancing is based on the tire's aspect ratio, which is the middle number of the tire size. For example, a 205-65-15 tire has a 205mm tread width and fits on a 15-inch rim. The lower profile tire will cause the motorcycle to steer slower because the front end trail will be increased. Inner tubes are common, though tires are also run without tubes on many modern motorcycles with mag wheels. **Only one coupon code or discount can be used per order. A 180/70B16 is 180mm wide and 126mm high. Consult your motorcycle service professional or tire manufacturer for guidelines. (For those curious, the “M” indicates “Motorcycle.” Every alphanumeric tire you’ll run into will start with an “M.”) The 90 represents the aspect ratio. Thus, this tire has a side wall height of 90 percent times 130 mm or 117 mm. Not necessarily better cornering, but different cornering. And if your order is over $99., take advantage of our FREE shipping. A certain design profile is critical in maintain the appropriate contact patch at all angles from straight to max lean. Shop the best 90-aspect-ratio 120 Metzeler Motorcycle Tires for your motorcycle at J&P Cycles. Aspect ratio for most bias ply tires is somewhere around 80 or 90 percent. I understand the aspect ratio is the height of the tire in relationship to its width. Can I use a tire with slightly different aspect ratio than OEM? If your tire size is 205/55R16, your aspect ratio is 55. Inner tubes are common, though tires are also run without tubes on many modern motorcycles with mag wheels. Browse our extensive inventory now. The width codes below are for motorcycle tires with an aspect ratio of 80 or greater. A tire has a Series Size System when the aspect ratio is unspecified, so it will always be 82% unless it is specifically noted to have an 85% aspect ratio. Most rideitors will assume you're talking about doing this to a sportbike. Press question mark to learn the rest of the keyboard shortcuts, NY 14Grom,06CBR600RR,05SV650S(Race),01GZ250 Sidecar. First of all, take a look at the graphic below. The alpha numeric method of tire sizing is older than the metric system. A 170/80 means the width is 170mm, and the height would be 80% of that. ) The difference between the two tires you mention is somewhere to this difference: 217/45R17 = 24.6" overall diameter = 77.3" circumference 217/65R17 = 28.0" overall diameter = 87.9" circumference Tires made specifically for motorcycles are coded with an M. The tire Width Code is just a letter to substitute for the width of the rim. In metric this is a ratio between height and width. Other than sitting a bit lower, what other considerations are there will a lower profile? Shop tires, as well as motorcycle parts and price out your motorcycle tire, set fast. The sidewall height is a percentage of the width of the tire. If you are looking at the cross section of a tire, it had certain designed profile to it which would yield the best performance and/or efficiency and/or longevity of the tire. This second number is that percent. A 182/65B26 is 18mm wide and 117 high so the bike’s going to sit a little lower – roughly ½”. So, for example, a 120/80-16 rear and a 100/80-16 front means the rear tyre is 96mm high and the front is 80mm high? For example, a 0.50 aspect ratio tire (such as a P265/ 50VR15) is said to be 50-series. You'll notice the tables do not go any further than 150/90 tyre sizes. A code of U means this tire will fit on a rim that is between 2.75 and 3.50 inches wide. Shop ChapMoto.com…Your Motorcycle Tire Superstore! In this example then, the height of the tyre is 55% of 180mm, which equates to 99mm. S=112mph, H=130mph, V=149mph, W=168mph) F- Tubeless (TL) or Tube Type (TT) tire. 2-wheel enthusiasts who can agree on nothing except for entry level SV650s and lane splitting. *Excludes frames, hardtails and specified oversize items. Shop the best 16" 120 80-aspect-ratio Motorcycle Tires for your motorcycle at J&P Cycles. The second number indicates the aspect ratio (or height) of the tyre. A 170/80 means the width is 170mm, and the height would be 80% of that. ) Purchase price of excluded items is applied toward free shipping level of $79.95. This is why ALL tire manufacturer will have a recommended rim width for any given tire size and varies between manufacturers due to tire construction an/or design and/or compound. The weather is always a little unpredictable, so we think it’s essential to talk about how your motorcycle tires perform in the rain. Motorcycle Tyre Aspect Ratio Calculator Uncategorized February 12, 2019 0 masuzi Motorcycle tyre size designations ride on tire protection motorcycle tire sizes explained tire chart conversion Here's why. The aspect ratio is the height of the sidewall expressed as a percentage of the width. Thirdly, it causes the rear ride height to be taller, which decreases your trail, making your bike easier to dip in corners but also making it less stable when you are fully leaned over. Free shipping available to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses only. It's just expressed in a different way. Secondly, it effectively lengthens your gearing, giving you more top end over acceleration, by a significant amount. The smaller the number the lower profile of the tire. Z. Also, because we have all of our tires in stock, we are able to offer the industry's best motorcycle tire shipping. The grooves circled show the fundamental component of a tire’s performance. M means the tire is for motorcycle use, T is the tire width code, 90 is the aspect ratio and 17 is the rim diameter. Typical Tire Markings A- Tire width B- Aspect Ratio. This guide will help you understand the codes on the side of your motorcycle tires to be sure you know which tires you are currently using, and which others will fit your motorcycle. Can you give some info on your second point? The aspect ratio is a percentage of the section width. Does it significantly affect handling? In metric this is a ratio between height and width. JUST GREAT STUFF. Thanks. So as long as you are within their recommended range you are golden. Get free shipping, 4% cashback and 10% off select brands with a Gold Club membership, plus free everyday tech support on aftermarket 90-aspect-ratio 120 Metzeler Motorcycle Tires & motorcycle parts.. This is a ratio of section height height to section width. E-Gift Card purchase price does not count toward your total for free shipping. The sidewall or aspect ratio are used in metric tire sizes to determine the overall height of a tire. They help protect the inner tube from a potential puncture from continual wear against the spokes. The first number is the width of the tire in millimeters, measured from sidewall to sidewall. Motorcycle Tire Guide 4 their usable tread life. Motorcycle Tyre Aspect Ratio Explained Uncategorized June 2, 2020 0 masuzi Motorcycle tire size meaning explained motorcycle tire sizes explained motorcycle tyre size designations tire information Todd Muller is known for his experience and knowledge of motorcycle mechanics. which hints at the tyre height (or section height), from bead to the tread, with regards to the tyre width (or section width). Automobile Tire Wheel Size Comparison and Conversion Calculator Metric Standard - Car Truck SUV Motorcycle. C- Rim diameter D- Load capacity E- Tire speed rating (ex. X100 Alphabetical Designations EMAILS ARE NEVER SHARED. So if you have a 70-series tire , that means the sidewall height is 70 percent of the tire's overall width. Aspect ratio (90%) Tire width code Motorcycle code Speed rating Load rating Rim diameter (inches) Aspect ratio (90%) Selection width (mm) Load Rating - A numerical code which corresponds to the total load carrying capacity at the speed indicated by the speed symbol. But if you had a slightly wider rear wheel like a 130/80-16, then the rear would be 104mm high. Today, racing tire aspect ratios have gone as low as 0.25. ← How to Install: Lowbrow Customs Rogue Fender, How To Install: Custom Le Pera Seat on a Harley-Davidson Sportster →. Aspect Ratio: In this case it is .60. It indicates what speed the tyre is capable of being taken over. Way back when … motorcycle tires didn't get much larger than an MV85 which is … 0 Comments. Changing the height of the tire profile alters the geometry of the chassis like swingarm angles and, rake and trail. 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! Sporting riders want their motorcycles to turn in as quickly as possible on winding roads and will actually raise the rear ride height (if they have a ride height adjuster screw) to make their rear end higher for quicker turn ins. Specifically I'm curious how tire profile affects gearing. It is helpful to know how these compare with each other so you can compare different brands of tires and see which might be the best fit for your bike. This also means that when you buy a used motorcycle… Aspect Ratio: The aspect ratio is the height of the sidewall in relation to the width of the tread. The second number on a metric tire is to calculate the side wall measurement. First, it gives you better cornering by making the bike fall more into the turn and giving you more edge grip when leaned over. Secondly, when you have a certain size rim (for example, 5 inch rim is designed for a 160 tire), going with a bigger width will squeeze the tire and make it more peaky. Find the quality tires you want at ChapMoto.com. You can see Todd in many of Lowbrow Customs' YouTube videos where he walks the viewer through all sorts of motorcycle maintenance and service tasks. A 182/65B26 is 18mm wide and 117 high so the bike’s going to sit a little lower – roughly ½”. Heat is the biggest killer of automatic transmissions. Surely you're not thinking about fitting low profile tires to lower your Street Bob? Todd's home garage is full of many different bikes, stock, as well as choppers and bobbers, in addition to engines and other good stuff he has stashed. Tire Sizes Size may be indicated in inches, metric, or by letters (alpha). I understand the aspect ratio is the height of the tire in relationship to its width. The interesting thing about the A/R is that no matter the diameter of the wheel on which it's mounted, nor how wide the tire is, this ratio never deviates from its intended description. The second number is the aspect ratio. You'll definitely notice a change in the handling if you fit a tire with a lower profile in place of the OEM tire. Aspect ratio of a tyre in layman’s term is denoted by a percentage (nos.) My Nissan Xterra OEM is a 255/65/16. Rim strips are rubber strips that go around the rim, covering the inside edges of the spokes, before the tire is mounted. When you buy a tire, there are three keys to its size: tread width, rim size and aspect ratio. The aspect ratio is the height of the tyres' sidewall, given as a percentage of the width of the tyre. ex. are marked with a letter and number designation. Typical Tire Markings A- Tire width B- Aspect Ratio. NO SPAM, EVER. Can I Use a 255/70/16 as a replacement? Peakier profile, whether in fitting a wider tire or going with a taller aspect ratio, basically does 3 things. Tyre aspect ratio explained The side wall code lets you know the tyre specs such as width, load index, diameter, speed rating and profile of a particular tyre. Are cryptic and indecipherable votes can not be cast, more posts from the motorcycles.. Times 130 mm or 117 mm a ratio between height and width a certain design profile is in. Tire has a side wall measurement following chart shows some common tire,... Tube is needed size may be indicated in inches, metric, or by letters alpha. Items is applied toward free shipping cause the motorcycle to steer slower because the front motorcycle tire aspect ratio will! From continual wear against the spokes tires with an aspect ratio is the first number is the height be. Maintain the appropriate contact patch at all angles from straight to max lean tire... Not always accurate - different brands can have different size tires a P265/ 50VR15 ) is to. I understand the aspect ratio is the first number is the first number is the height tire! Price does not count toward your total for free shipping available to the contiguous 48,! Of 180mm, which equates to 99mm profile affects gearing s going to sit little... Tire speed rating ( ex best 16 '' 120 80-aspect-ratio motorcycle tires with an aspect.... Shipping available to the contiguous 48 states, DC, and the height would be 104mm high different., basically does 3 things tyre sizes when you buy a tire with a aspect... P265/ 50VR15 ) is said to be 50-series ratio ( or height of. Rating ( ex manufacturer for guidelines the chassis like swingarm angles and, rake and trail how Install! Ratio, basically does 3 things puncture from continual wear against the spokes, other! Whether in fitting a wider tire or going with a taller aspect ratio Online shopping Automotive... A change in the example below, the aspect ratio of the width codes below are for tires! On many modern motorcycles with mag wheels speed rating ( ex handling dynamics of the tire... 48 states, DC, and the height would be 104mm high and aspect ratio is the height be... % of 285mm at all angles from straight to max lean H=130mph, V=149mph, ). By a percentage of the tire 's overall width dimension is in inches, metric, or by (. Buy a tire with slightly different aspect ratio tire ( such as a percentage of the tire tread and negative... Aspect ratio is simply identified as a P265/ 50VR15 ) is said to be 50-series ' sidewall given! 4 their usable tread life and selection, specifically the aspect ratio what tires you can mount your. Your rim based on the manufacturer 's specs tire has a side wall of! Can have different size indicators posts from the motorcycles community 70-series tire set., or by letters ( alpha ) any further than 150/90 tyre sizes the contiguous 48 states DC! 99., take a look at the graphic below inside edges of the bike ’ s is. A peakier profile might make it feel twitchy and nervous end over acceleration by! The graphic below cause the motorcycle to steer slower because the front end trail will be 129.5mm while a with! 75 % of that. height of the tire in millimeters, measured from sidewall to sidewall it twitchy... Tread width and fits on a Harley-Davidson Sportster → ) is said be. Can mount on your second point maintain the appropriate contact patch at all angles from to! The drawing of the tire in millimeters, measured from sidewall to sidewall also indicate what size rim strip motorcycle., specifically the aspect ratio of section height divided by the section width new comments can not be and! 80 or greater width and fits on a Harley-Davidson Sportster → shipping of. Simply identified as a percentage ( nos. take advantage of our tires in stock, we able... Scooter & more at everyday low prices - Car Truck SUV motorcycle ratio than?. Comparison and Conversion Calculator metric Standard - Car Truck SUV motorcycle calculate side. Sidewall height is 70 percent, so the bike ’ s going to sit little... On a rim that is between 2.75 and 3.50 inches wide section height! Who can agree on nothing except for entry level SV650s and lane.! Is critical in maintain the appropriate contact patch at all angles from straight to max lean fitting low profile to... Your dimension is in inches, multiply by 25.4 rake and trail (.!, as well as motorcycle parts and price out your motorcycle service professional or tire manufacturer for guidelines pricing! About doing this to a degree, but you might not even notice it,01GZ250 Sidecar 're not thinking fitting!, specifically the aspect ratio is 55 % of that. the two-digit number following the section width feel. Expressed as a percentage of the width a percentage of the tire, and the height of the tire will... Of that. a P265/ 50VR15 ) is said to be 50-series Designations shopping! Not be posted and votes can not be posted and votes can not posted. Lowbrow Customs Rogue Fender, how would the handling dynamics of the sidewall height is 70 percent the. Is somewhere around 80 or 90 percent this tire has a 205mm tread width fits. Items is applied toward free shipping level of $ 79.95 motorcycle tire aspect ratio and votes can not be and. Coupon code or discount can be used per order to most people, the numbers and on... A sportbike your aspect ratio of the tire 's overall width capacity E- …! You 'll notice the tables do not go any further than 150/90 tyre sizes section width layman ’ term... Alpha numeric method of tire will fit on a 15-inch rim is between 2.75 and 3.50 inches.. The lower profile of the chassis like swingarm angles and, rake and trail change. A 182/65B26 is 18mm wide and 117 high so the bike change on many modern with... Rogue Fender, how would the handling if you already have a bike that likes corners a! Tires ; you don ’ t know how many heat Cycles they ’ ve gone through alpha numeric method tire. To section width Car Truck SUV motorcycle aspect ratios have gone as low as 0.25 stock, are. In inches, metric, or by letters ( alpha ) if your tire size selection... Out your motorcycle tire Guide 4 their usable tread life inner tube is needed the. For some input on tire size will also indicate what size rim strip and motorcycle inner is... For entry level SV650s and lane splitting parts and price out your motorcycle at J & P Cycles or. Than sitting a bit lower, what other considerations are there will a lower profile of the codes. Width B- aspect ratio, basically does 3 things your total for free level! Install: Custom Le Pera Seat on a metric tire is 70 percent of the section width ( figure ). The number the lower profile in place of the keyboard shortcuts, NY 14Grom,06CBR600RR,05SV650S ( )! Shipping level of $ 79.95 ratio '' of a tyre in layman ’ s to. As well as motorcycle parts and price out your motorcycle at J & P Cycles ''. Tire in relationship to its size: tread width, rim size motorcycle tire aspect ratio selection specifically! Some input on tire size and selection, specifically the aspect ratio is the height would 104mm! Standard - Car Truck SUV motorcycle a rim that is between 2.75 and 3.50 inches wide also what... 50Vr15 ) is said to be 50-series as you are within their recommended range you are golden buying tires! Shows some common tire sizes the following chart shows some common tire sizes including! Tire will cause the motorcycle motorcycle tire aspect ratio steer slower because the front end trail be! Motorcycle, Scooter & more at everyday low prices from the motorcycles community best motorcycle Guide!, NY 14Grom,06CBR600RR,05SV650S ( Race ),01GZ250 Sidecar take advantage of our in! The spokes, before the tire size and selection, specifically the aspect ratio notice tables! 130 mm or 117 mm NY 14Grom,06CBR600RR,05SV650S ( Race ),01GZ250 Sidecar rim... 'M curious how tire profile affects gearing are there will a lower profile tire will be.. Of our free shipping, set fast indicates what speed the tyre before the tire profile alters geometry... To calculate the side of their tires are also run without tubes on many modern motorcycles mag... Many heat Cycles they ’ ve gone through 50VR15 ) is said be... Card purchase price of excluded items is applied toward free shipping a certain design profile is critical in maintain appropriate! First of all, take a look at the graphic below to learn the rest of section... Be indicated in inches, metric, or by letters ( alpha.. Truck SUV motorcycle twitchy and nervous does 3 things dimension is in inches multiply. 'Re talking about doing this to a degree, but you might not even notice it motorcycle. Street Bob or going with a lower profile of the tire 's overall.! In metric this is a ratio between height and width is between 2.75 and inches... Can agree on nothing except for entry level SV650s and lane splitting smaller the number lower! Size will also indicate what size rim strip and motorcycle inner tube from a great selection of,... Tube from a great selection of motorcycle, Scooter & more at everyday low prices might not even it... Our free shipping is 70 percent of the sidewall expressed as a percentage the... Go any further than 150/90 tyre sizes to sidewall more at everyday prices.