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What does 97w on a tire mean?

2 Answers

LaAdam

07/24/25 1:31am

Tire 97w indicates the load index and speed rating of the tire. More details about tire 97w are as follows: 1. 97 means that a single tire can bear a maximum weight of 730KG, and w indicates that the tire can withstand a maximum vehicle speed of 270km/h. 2. Speed rating: The maximum speed that a tire can achieve under specified load and pressure standards. 3. Load index: The maximum load capacity of a single tire under specified conditions. 4. Tire 97w: 97 = load index (730kg represented by 97); W = speed code, where speed codes are represented by various letters for different speeds, and W refers to a speed of 270km/h.

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BeauRose

08/10/25 9:12pm

Regarding the 97W on tires, let me share my understanding. The number 97 represents the load index, indicating the maximum weight the tire can bear, approximately 1,600 pounds or 730 kilograms. The letter W is the speed rating, meaning the tire's maximum safe driving speed can reach 270 kilometers per hour or 168 miles per hour. I remember when I last changed tires, the mechanic specifically reminded me to match the vehicle's manual parameters; otherwise, overloading or speeding could increase the risk of a blowout. I drive an SUV and often take my family of five on trips with heavy luggage, so I chose the 97 rating to ensure safety. Additionally, the W rating is suitable for high-speed driving, providing more stability on highways. Regular tire wear checks are also crucial, as reduced load capacity can affect overall driving safety. Don’t skimp on these numbers when changing tires, or you might face issues during emergency braking.

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