Car Tyre Codes Explained

Youll either need to stick to the exact size the car comes with or upgrade to. The last two digits represent the year.

What Are Those Numbers On Car Tyres Car Tyre Markings Explained

Tire Load Index is a number that corresponds to the load a tire can carry at its maximum internal air pressure.

. MS denotes that the tyre is. R indicates the tyre is manufactured with a radial ply construction. The last four digits usually presented in a small window can help you to identify the age of the tyre.

The letter tells us what type of vehicle or service the tire was designed for. The DOT tyre date code is a 7 to 13 character code that is legally required and is usually printed in smaller letters near the bead of the tyre where the tyre meets the rim. Most tire sizes begin with one or more letters -- for example P or LT.

The code CSR ContiSupportRing can still be found on older Continental tyres but this has been replaced by the new technology for self-supporting run flat tyres with the code SSR Self Supporting Runflat. Here we explain what it all means using the code for one of the tyre types weve tested as an example. Manufacturers use different codes to mark their run flat tyres.

Tire service type ratings. You cant just buy any tyre that would be ridiculously futuristic right. LT stands for Light Truck ST is.

The M in MOE here stands for Mercedes and OE denotes the factory fitted original parts. Commonly appears after tire size. The first two digits represent the week of the year the tyre was produced from 1 to 52.

If there is a P on the sidewall it stands for passenger car This refers to the US. Its first letters are DOT which stands for Department of Transportation and indicates that the. P P-Metric Example.

Standard load inflation table 100 speed rating T AMx. But most importantly the code is decisive in terms of compatibility with your vehicle. Following the name the tire code begins with a letter.

In addition to the three ratings every tyre has letters and numbers embossed on them which provide enough information for you to choose the right one for your car and needs. LT stands for light truck and is designed for SUVs vans and the like. BMW-Mini original manufacturer fitment 030908.

Glossary of Tire Code Symbols Vehicle Classification. Department of Transportation DOT National Highway Traffic Safety Administration NHTSA safety standards. The digits 225 refer to the section width in mm when the tyre is fitted to the recommended rim inflated to the recommended pressure before its under load when attached to a car.

Passenger tires have load indices spanning from 75 to 105 where each numeric value corresponds to a specific load capacity. This stands for P-metric or passenger. On each tyre you will usually find a series of numbers and letters that look something like this.

The first thing listed on the tire sidewall is the name of the tire model. The tyres rim diameter is measured in inches taken from the wheel flange where the tyre is seated bead seat area to the same point on the opposite side. This symbol indicates the tire manufacturers compliance with the US.

In our example 95 is a code for the maximum load a tire can support when fully inflated. Read on to learn how to crack the tire code with this handy guide dedicated to tire types sizes and construction. It tells you who manufactured the tire where it was made and other tracking.

65 indicates its aspect ratio a comparison of the tyres section height with its section width 65 indicates the height is 65 of its width. Vintage car tyres and those made for cars before 1990. Maximum load in kg and lbs MS.

Improper matching of the load index to the weight of a loaded vehicle if the vehicle weight exceeds the value of the tire speed index may result in rapid loss of tire performance and may even result in the tire exploding. Lets decode the additional codes in this sequence. When it comes to how to read tyre size the first five digits of the code are the ones to concentrate on.

Overall the code represents. This is the most common type of tyre and is designed to be used on passenger vehicles. What is tire load index.

Tyre markings explained. Up to 5 cash back At first glance the tire code may mean little to you aside from the size of the tire. Approval number of the tire 100T.

15 indicates the nominal diameter of the wheel rim 15 inches. 205 indicates the normal section width of the tyre in millimetres 205mm. The sidewall of a tyre is stamped with codes and markings that will tell you all you need to know about it in order to assess its suitability for your car.

Aston Martin OE Fitments AO. Each of these digitsletters represents something different and provides important information. Tyre code has a great significance since the code on the sidewall determines the feature of the tyre and a portion of its key restrictions for example speed limit and load-bearing capacity.

There are numerous other markings on a typical tire these may include. P - Passenger Car LT - Light. P-metric method of tire sizing.

R indicates radial ply construction. The carrying capacity for each value is described in a load index chart in your vehicle or tire documentation. In some instances a tyre number sequence will start with the letter P.

E11 means the tyre is approved in the UK. All of these aspects are explained in more detail below. So a tyre marked.

The code SSR stands for Self-Supporting Run flat tyre. In the example the height of the tyres sidewall is 40 of the tyres section width or 245 x 40 98mm. To find your tires age you need to locate the DOT Date Code on the tire.

An ECE code is proof that the tyre has passed European safety standards - as its possible that some non-EUUK-made tyres are not manufactured to the same safety standards. The markings represent a tyres width sidewall height diameter profile load index and speed rating. What Is Tire DOT Date Code.

The letters and numbers relate not only to a tyres size and dimensions but also its composition and speed capabilities.

Tyre Sizes And Markings Explained Watling Tyres Autocentre

How To Read Your Tyre Size Understand The Writing Codes Tyre Pros

What Is Tyre Aspect Ratio Tyre Size Calculator Tyre Measurements