The garage may ask you to sign a form to note any previous markings on the wheels, this ensures that if anything happened during the fitting you won't be responsible for the cost of repair.
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.