How to find your tyre size

Your new tyres can be any make and tread pattern you choose, but the size must match those currently on the car.

You can find the size by reading the markings on the side of your current tyres.

Look for a group of letters/numbers like the example below, which tell you the tyre’s width and profile, the wheel diameter, and the tyre’s load and speed ratings.

Eg: 215/60 R 16 91 V.

In this example:

  • 215 is the tyre’s width (A) in millimetres.
  • 60 is the tyre’s profile (B).
  • R indicates the tyre’s construction type (in this case radial).
  • 16 is the wheel rim diameter (C) in inches.
  • 91 is the vehicle’s load index (the maximum load it can carry).
  • V is the tyre’s maximum speed rating.

The speed and load ratings of the replacement tyre(s) may be higher but cannot be lower than the values given in the vehicle handbook.

This table shows the maximum speed for each speed rating:

Code mph
A-J 62
K 68
L 75
M 81
N 87
P 94
Q 100
R 106
S 112
T 118
U 124
H 130
V 149
Z Over 149
W 168
(W) Over 168
Y 186
(Y) Over 186