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What does the maximum speed value indicate?

1 Answers

MacTyler

07/30/25 1:45am

The sidewall of a tire features numerous alphanumeric markings, which represent the tire brand, model, production date, and specifications. Among these is a speed rating letter that indicates the maximum speed the tire can safely maintain under specified conditions. The further the letter is in the alphabet, the higher the speed it represents. Common tire speed ratings and their corresponding letters are as follows: 1. Letter S: Represents a maximum speed of 180 km/h; 2. Letter T: Represents a maximum speed of 190 km/h; 3. Letter U: Represents a maximum speed of 200 km/h; 4. Letter H: Represents a maximum speed of 210 km/h; 5. Letter V: Represents a maximum speed of 240 km/h; 6. Letter W: Represents a maximum speed of 270 km/h; 7. Letter Y: Represents a maximum speed of 300 km/h.

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