The speed symbol of a tyre forms part of the load index and is a letter or that indicates the maximum speed at which the tyre can carry a load corresponding to its load index. (Except for speeds above 210 km/h for a V rated tyre, above 240km/h for a W rated tyre and above 270 for a Y km/h rated tyre). Only those tyres with a minimum speed rating as shown in the vehicle papers may be used on the vehicle.

Please see the following table with the different speed indexes and there corresponding maximum speeds:

M&S (winter) tyres with a lower speed rating than that of the vehicle may be fitted. In some countries it is mandatory that a sticker be placed in the view of the driver indicating the maximum speed of the tyre. This speed may not be exceeded while these tyres are fitted.