Want help working out your tyre size?

 
How do I find my tyre size?

The size of a tyre is printed onto the side of the tyre – on the area known as the sidewall. When looking for the size, you will see that it is made up of a series of numbers and letters.

In the above example, each section breaks down as follows:

205 – Width of the tyre in millimetres
55 – Height of the tyre sidewall as a percentage of the width. In this case 55%. Also known as the aspect ratio.
R16 – The diameter of the tyre’s inner rim in inches
91 – Load Rating of the Tyre.
V – Speed Rating. Indicates the maximum speed for the tyre when at full load.