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1 kwi 2021 · SPEED RATING V. Once the highest speed rating a tire could have, “V” used to represent a maximum of 149 mph (240 kph) or more. Nowadays, it means 149 mph but no higher. SPEED RATING W. A relatively new addition to the speed rating chart, tires with speed rating “W” can achieve a maximum sustained speed of 168 mph (270 kph). SPEED RATING Z
A tire’s speed rating indicates the optimal speed that the tire can safely maintain over time. In short, it’s the fastest speed a tire can handle before it no longer performs as designed. The higher the speed rating, the better control and handling you’ll have at higher speeds.
Tire ratings and labels provide valuable information about a tire’s performance, including its speed rating, load capacity, and treadwear rating. The speed rating indicates the maximum speed a tire can safely handle, while the load capacity tells you how much weight a tire can support.
The tire speed rating indicates the maximum speed at which a tire can carry its maximum load. On the sidewall of your tire (or the sticker in the driver's door, or the owner’s manual), the speed rating is defined by a letter right next to the load rating. Here, the tire speed rating is V.
A Z rating indicates the tire has been approved for speeds of 149+ mph (240+ km/h) under optimal conditions. This rating is associated with maximum tire performance and is a match for performance coupes and sedans, sports cars, and supercars.
25 wrz 2020 · ZR-Rated Tires: The ZR rating (or Z rating) indicates anything above the V rating (168 mph), so it includes both the Y and W speed rating. Sports cars will often get the best handling with these tires.
22 wrz 2022 · V-, W-, and Y-rated tires are most often found on high-performance vehicles and sports cars, along with some electric vehicles. You’ll find that most winter tires will have Q, S, or T speed ratings.
