It is IMPORTANT that you check your speed rating before buying your tyres - as choosing a lower tyre speed rating could INVALIDATE your INSURANCE. For further information call 0845 200 0022.

The tyre speed rating (i.e. S) is the maximum speed for which the tyre is rated. For example, the S rating identifies speeds up to 112 mph.

Speed ratings are based on scientific tests where the tyre is run at speeds in 6.2 mph steps in 10 minute increments until the required speed has been met.

You will find your speed rating on the side of your tyre at the end of a series of numbers - as follows:

205/55 R16 91W

Speed Rating Miles/Hour Kilometers/Hour N 87 140 P 93 150 Q 99 160 R 106 170 S 112 180 T 118 190 Speed Rating Miles/Hour Kilometers/Hour U 124 200 H 130 210 V 149 240 Z 150+ 240+ W 168 270 Y 186 300