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What do 91V and 91W mean on tires?

1 Answers

DiBrooklyn

07/29/25 1:36pm

The difference between 91V and 91W tires lies in the letters V and W at the end. These letters represent the speed rating of the tire. V indicates that the tire can withstand a maximum speed of 240 km/h, while W means the tire can handle up to 270 km/h. In other words, a 91W tire can bear a load of 615 kg and support a maximum speed of 270 km/h. Here is some related information about tires: 1. Tire lifespan: The wear life of a tire is typically 30,000 to 50,000 kilometers. If the tire hasn't reached the wear limit or mileage but has been in use for 5 years or shows significant sidewall cracking, it should be replaced. 2. Tire material: The main component of a tire is rubber. The maximum storage and anti-aging period for rubber, from natural latex to EPDM and nitrile, does not exceed 10 years. The average service life of various rubber products in use is 3-5 years.

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