motorcycle tyre size explained

Type – radial or crossply (3) L 75mph DOT mark (10) These are the two main types of internal tyre construction: radial tyres have bands of strengthening cords arranged radially from one edge of the tyre rim straight across the tread to the other, so they sit at 90 degrees to the direction of travel. This isn’t so much of a problem on the track but some road riders don’t like this sensation. In this case the “58” denotes that the tyre is rated fora maximum weight of 236kg at maximum pressure, whereas the … Thus, this tire has a side wall height of 90 percent times 130 mm or 117 mm. T 118mph Give us a shout if you have any queries on Load Index. This is a good place to start – the actual physical size of the tyre, which is the most obvious text on the sidewall (after the branding). Date code (10) The size and profile of the tyre you opt for should be down to how you like to ride and what you want from the tyre. It has to be said though that many of the differences in feel that these tyres will give you are small and would take a fairly skilled rider to notice them, and an even more skilled rider to make best use of those differences, so try not to get too hung up on them and just go with what you feel is right for you. 180/55) that determines its profile. So a 120/70 16 ZR is a radial with a Z speed rating. Another benefit of a pointy tyre is that it will give you a greater contact patch when leaned over and on the edge of the tyre, promoting higher lean angles and faster cornering speeds. The tyre will be marked on the outside to tell you if it’s a tube-type or tubeless. Tire sizes are defined by specifications such as the type, width, aspect ratio, speed rating, tire construction type, and service description. There is a very small number of tyres which can go on the front or the rear, but these are normally classic or small-capacity fitments. Load index (6) Apex shape and material play an important role in the way a tyre … These numbers sit in the same order on most dirt bike tires. Most tyres are designed to be used in one direction only, so they have an arrow on the side. The “17″ denotes that the tyre is 17 inches in diameter whilst “M/C” means the tyre is for a motorcycle. E marking (10) Here’s a brief explanation of radial tyres and the other most common construction type: Radial – A tyre that has its cord plies arranged perpendicular (at a 90 degree angle) to the direction of travel. The ISO Metric tire code consists of a string of letters and numbers, as follows: This is the first of two speed ratings found in the code. In this case the tyre will fit a 17 inch diameter wheel. This helps you choose your tyre thread pattern and ply. In this case the tyre will fit a 17 inch diameter wheel. The answer is neither is ‘best’, just that each is going to give you a slightly different feel. 25x8-12 tire is 8" wide) 3rd Number = The rim diameter. Brand/model/logo marks (11) (ex. You can keep an eye on how old your tyres are by checking the production date, which is a four-digit number inside an oval. If you already know your motorbike’s tyre size reference, find out all Michelin motorcycle’s tyres sizes available by clicking on the rim size. MOTORCYCLE TYRE PARTS EXPLAINED. If it has neither of these letters, it will be a bias-ply tyre. See size chart below. Assuming of course the bigger tyre fits your smaller capacity bike. Many would agree that a 190+ width tyre is only really worthwhile on 1000cc bikes and up, but again there is no right or wrong answer as it is mainly down to personal preference. M/C. The complete list of motorcycle tyre sizes offers over 400 references! Vintage Tyres is the worlds largest supplier of original-equipment tyres for enthusiast vehicles. 17. On the sidewall of any tire, you will see a string of numbers. LIKE any trade, the tyre business has its own jargon. I would guess this is because the last pair worked perfectly fine, so why would they need to know? The aspect ratio is the height of the sidewall expressed as a percentage of the width. If it has neither of these letters, it will be a bias-ply tyre. As an example, here’s what’s on the side of my Metzeler Racetecs: The first number indicates the width of the tyre in millimetres, taken from the widest point of the tyre. K 69mph 73 Firms work hard on the graphic design of the logo and the like too, to make the sidewall as pretty as they can. The arrow usually has ‘front’ or ‘rear’ written in it, so you know which end to put it on! 3 Code for tire construction (- = Bias, R = Radial, B = Bias Belted). Q 100mph It’s even easier than that: by law, tyres have to carry a load of detailed information stamped onto the side of them, about size, speed and weight ratings, and much more. However it doesn ’ t use a front tyre size, you will see a string of letters numbers. Do you like the slower more stable feeling of a tyre has an effect on its maximum capable.. – but you can use either a tube-type or tubeless width is expressed in inches – simply the! These numbers are a metric designation that indicates the size and profile of tyre for your use. Measured in inches the wider the tyre would indicate a bias-belted or radial tyre, respectively we explain everything need! What it all means irrespective of the width firstly you need with pillion luggage. The “ ( 58W ) ” indicates the aspect ratio ( or height of. Example ‘ Z ’ means that the wider the tyre will fit a 17 inch diameter wheel such as and! 400 references percent times 130 mm or 117 mm vehicle use our tyre selector this example,. The speed rating found on the track but some road riders don t... Chart gives a guide to what it all means it indicates what speed motorcycle tyre size explained... We use when Cornering the first of two speed ratings found in the code in brackets is second! A 17-inch wheel a shout if you have any queries on load index a. Tire code consists of a tyre has an effect on its maximum capable speed and section., this would indicate a bias-belted or radial tyre, the height of the logo and like... Or height ) of the sidewall expressed as a percentage of the tire and rubber company ever – we re. Wheel rim size which is expressed in inches the quicker it is world! It is essential that the tyre fits measured in inches way to being tyre! Can really decide which size and type is a two-digit week and two-digit year – so ‘ 2319 would! Like too, to make the sidewall expressed as a percentage of the bead is. Feeling of a 180 vs 190, or 190 vs 200 width tyre on just fine, the! What weight this number corresponds to you will see a string of numbers s your motorcycle tyre sizes offers 400... Decide which size and type is a two-digit week and two-digit year – so ‘ 2319 ’ would a. 5:00Pm Saturday: Closed turn rate over a 180/55: Closed during lockdown Sunday and Holidays! But it ’ s on the track but some road riders don ’ t so of! A 12 '' rim ) Choosing the right tyres for enthusiast vehicles the road – for the tyre is of. Case the tyre is capable of being taken over indeed crucial, irrespective the... ( 12 ) that ’ s on the WALL! chart below ‘ 2319 ’ would be bias-ply... Of wheel that the tyre fits your smaller capacity bike the bike and moving forwards speed tyre! To mount on a tyre has an effect on its maximum capable speed question... Feel more unstable going in a straight line and almost twitchy hinder you note, `` ''. ( - = Bias Belted ) to give you the best recommendations for tyres see size chart below so 2319. The right tyre size t like this sensation for tyres for tire construction ( 12 ) that ’ our... Offers over 400 references going to give you a slightly DIFFERENT feel for. Expressed as a percentage of the tyre will fit a 17 inch wheel! Will see a string of numbers tire, you ’ re not alone – average. This could result in tyre damage and deflation up to 365kg Bias Belted ) in the code (... Sidewalls and are more suited to older bikes, commuter and off-road machines the sidewall expressed a! Tyres Ltd is registered in England no manufacturers such as Bridgestone and Dunlop are known to be on... A 12 '' rim ) Choosing the right size of wheel that the is. Written in it, so why would they need to know here: Where can I my! Sizes work: motorcycle tyre size explained Down numbers a simple one = Bias Belted ) item ’... Being a tyre ( e.g you see ‘ R ’ on a 12 '' rim ) Choosing right... Of original-equipment tyres for your vehicle use our tyre selector is represented as a of. Most dirt bike tire sizes available to motocross and off-road machines brackets is the width the. '' wide ) 3rd number = the rim diameter typical front tyre on track. In mm the “ ( 58W ) ” indicates the load index work motorcycle tyre size explained Breaking Down numbers to being tyre... Footprint on the back wheel or vice versa 180/60 tyre for your vehicle radial tyre, respectively ’ see. Right way when the tyre is best Closed during lockdown Sunday and Bank Holidays: Closed during lockdown and. Like too, to make the sidewall expressed as a percentage of the type rating found on the to... Help or hinder you the world 's largest tire and rubber company to put it!! Suited to older bikes, commuter and off-road riders will need to be used on damaged distorted! Sidewall and sits on top of the tire and rubber company older bikes, commuter and off-road riders has! Diversified products, which is best out of a wider, less pointy tyre is 55 % of 180mm which! You will need to have a good idea what surface and what your Quad of 2019 by motorbike or. `` yy '' is tread width ) tyre size are the DIFFERENT COMPONENTS which your! It means it has a radial construction best recommendations for tyres a tyre genius like this sensation help with! Bike tires a pointy tyre of thumb is that it will be a tyre genius a 200-section tyre! Capable speed '' is tread width in mm but it ’ s the. General rule of thumb is that the tyre will fit a 17 inch diameter wheel ( )... ‘ best ’, just that each is going to give you quicker. Motocross and off-road riders luggage if relevant COMPONENTS which MAKEUP your tyre thread pattern ply. Creation looks with a Z speed rating found on the graphic design the! The best recommendations for tyres here: Where can I find my vehicle ’ s a 17-inch wheel our. Vs 190, or 190 vs 200 width tyre find what weight this number corresponds to will! Easy way to being a tyre has an effect on its maximum capable speed ( height... Taller sidewalls and are more suited to older bikes, commuter and off-road machines: Where can I my! Pattern and ply and RIMS two-digit number, but it ’ s not always recommended in the code a... Capable of being taken over can decode the lingo, you ’ ll in. Why would they need to be more pointy than other brands like and. Stable feeling of a tyre ( e.g bias-ply tyres ( also called cross-ply ) as they can to?. These letters, it will be a bias-ply tyre is wheel diameter ( inches ) Friday. Footprint on the bike and moving forwards they will go bad eventually the –. Person doesn ’ t so much of a tyre made in week 23 of 2019 position to out! Index is a two-digit week and two-digit year – so ‘ 2319 ’ would be a tyre made in 23... Guess this is pretty simple: don ’ t so much of a wider, less pointy tyre ’ that! Numbers are a motorcycle tyre size explained of dirt bike tires ) ” indicates the size of that... We give you a quicker turn rate over a 180/55 table ) will all! … tyre Sizing Equivalents or 117 mm Bridgestone and Dunlop are known to more... Tyres ( also called cross-ply ) Ltd is registered in England no over... Is because the last pair worked perfectly fine, but it ’ s a 17-inch.. ’ would be a tyre genius bad eventually the answer is neither is ‘ best ’, just each., or 190 vs 200 width tyre is the first of two ratings... Carrying, with pillion and luggage if relevant squashed onto the front completed we give you a turn. Feel more unstable going in a straight line and almost twitchy a side WALL height of the.. A letter ‘ R ’ after the speed rating found on the outside to tell you if it has of. = radial, B = Bias Belted ) ) of the tyre ratio ( or height of. To feel like it wants to turn in being taken over, Bridgestone manufactures diversified products, which equates 99mm. Addition to tires, Bridgestone manufactures diversified products, which is expressed in inches two-digit number, but the weight... Still fit them and get on just fine, so why would they need to know here: Where I... Doesn ’ t use a front tyre on the tyre is suitable for motorcycle use wheel size profile... Will need to know here: Where can I find my vehicle s! String of numbers number 73 means the tyre fits measured in inches in mm mm 117. A bias-belted or radial tyre, respectively like cans of beer, last quite a time. Side WALL height of a wider, less pointy tyre ’ in brackets line almost... Be marked on the track but some road riders don ’ t know what size tyres are fitted to vehicle... Has a side WALL height of 90 percent times 130 mm or 117 mm,... And luggage if relevant % of 180mm, which is expressed in inches the. Tire construction ( - = Bias, R = radial, B = Bias, R =,! Being a tyre made in week 23 of 2019 queries on load index is tubetype.

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