The speed rating is normally the last character in the tyre’s size code, for example: 205/55R16 91V where “V” is the speed rating. View your current speed rating by checking the sidewall of your car’s tyres. Vehicle manufacturers recommended speed ratings can be found in either the owner’s manual, driver’s side door, glove box door or fuel tank hatch. Identical tire models with varying speed ratings may be produced by various manufacturers. A tire with an H rating has a higher speed restriction of 130 mph, indicating that it can be driven faster safely than a tire with a 94T designation. Tyre manufacturers usually recommend having the same speed rated tyre on all four wheel positions. A T speed rating means that the tire can safely travel up to 118 mph. Higher speed ratings generally have better grip and stopping power, but lower tread life. Ride comfort, tread wear and cornering ability is also influenced by speed rating. Z was the highest speed rate until W and Y were used to match highest speeds of exotic sports cars. Speed ratings for tyres range from A (the lowest) to Y (the highest), however, they don’t always follow alphabetically as H is rated between U and V. With a maximum speed of 118 mph190km/h, you usually find tires with speed rating T on family sedans and minivans. Tyre speed ratings were introduced by Germany, due to their Autobahn (famous highway system) which has no federally mandated speed limit for some classes of vehicles. V 240km/h Sport Sedans, Coupes & Sports Car Tyres Tyre replacement: most tyre manufacturers recommend that vehicle owners replace a speed-rated tyre with a tyre of equivalent or greater speed rating. Important: speed ratings only apply to tyres that have not been damaged, under-inflated, overloaded or altered. Speed rating of a tyre is based on laboratory tests, under specific controlled conditions, where the tyre is pressed against a large diameter metal drum to reflect its appropriate load, and run at ever increasing speeds until the tyre’s required speed has been met or the tyre fails. View the speed rating chart for South Africa below. For e.g., the letter T defines the maximum speed limit at 190 kmph/118 mph (Please see the tire speed rating chart below). The tyre speed rating chart was established to match the speed capability of the tyre to that of the vehicle.
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