Tyres are tested by the individual tyre manufacturers and then the results independently verified to ensure a high level of consistency. For more information see our guide.
If you don’t know what you’re looking for, look at the diagram below:
Your tyre size is on the sidewall of the tyre, the sidewall of the tyre is the part that you can see when you look at your tyre on your vehicle.
On the sidewall you will see a series of numbers, these numbers are the actual size of your tyre.
If you look at the picture below we have highlighted the Width, Proﬁle, Rim Size, Load Rating & Speed Rating.
the width of the tyre, measured in millimetres.
The height of a tyre sidewall as a precentage of the width.
The diametre of the wheel's inner rim, measured in inches.
Indicates the maximum speed for the tyre.