Tyre sizes explained

A Tyre Width

The tyre width measured in millimetres.

B Tyre Profile

This is the ratio of the tyres width to the tyre's height.

C Rim Size

The wheel rim size in inches.

D Load and Speed

Load rating (number) denotes the maximum weight the tyre can carry and speed (letter) denotes the maximum speed of the tyre.

Tyre size guide