Tyre markings chart

Understanding Car Tyre Markings – A Beginners Guide

When most of us look at the tyres on our car we just see numbers and letters and look away again in confusion. Today, we are going to explain to you what the different numbers and letters actually mean.

Firstly, you will always find them on the outer sidewall of the tyre, on some tyres there is more information included such as technical characteristics and approvals etc. But for today we are going to focus on the basics. When choosing tyres for your vehicle it really helps to understand these codes.

Dimensions & Performance:205: This is the width of the tyre in millimetres. This varies depending on the width of each tyre and the wider the tyre the more stability and road grip for your vehicle.65: This is the ratio of the height of the sidewall of the tyre to the width. In this instance the height of the tyre is 65% of the width.R: This stands for Radial. Crossply and Belted Crossply will usually be marked with a dash replacing the letter R.15: This is in inches and highlights the diameter of the rim with which the tyre should be fitted.91: This is the Load Index and it specifies the load that the tyre can carry safely at its highest speed.V: This is the Speed Index and informs you of the max speed the tyre can reach.

For more information on any of these markings please call into any of our depots and one of our technicians will be glad to help you out or give us a call on 01 860 20 20.