While these tests relate to performance on the road under those conditions, remember that real-life driving is rarely identical to test conditions. Driving at night calls for clear and well maintained headlights for optimum visibility.
Take a look at what causes foggy headlights and how to clean or restore them. The TPMS warning light will help warn you when your tyre pressure is too low and could create unsafe driving conditions. Do you know what to do next? No matter what vehicle you drive, finding the manufacturer-recommended tyre size should be easy. Learn where to find your tyre size and what it means. Find Your Tyre. By Vehicle. Tell us what you drive. YES NO. Not sure? Still need help?
Google Plus. Enter your area code and phone number without hyphens ex. W, on the other hand, means the tires can achieve maximum speeds of up to mph.
Typically, the further along you go in the alphabet, the higher the speed rating. Car manufacturers select a specific speed rating for your car because the vehicle is specially designed around the performance of the tires. If you are used to driving a car with a certain speed rating, then equipping it with a new speed rating Example: V-rated to a W-rated will create a world of difference.
This will change your overall vehicle performance and your driving as a whole. This was for tires whose maximum sustained speed was mph kph or more. They begin with a maximum speed of mph kph and increase from there. Nowadays, it means mph but no higher.
When it does, it represents either a maximum speed of more than mph kph or mph kph. Which of those speeds it refers to will depend on the specific tire. Contact the manufacturer to get details on any Z-rated tires. Sports car owners are more likely to encounter this speed rating than owners of typical family sedans. Speed ratings are based on laboratory tests under specific, controlled conditions.
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