How to Identify the Maximum Speed Rating on Car Tires?
2 Answers
Car tires' maximum speed rating can be identified by looking at the letter following the numbers on the tire sidewall. Taking 195/65R1588H as an example: the letter H here represents the maximum speed rating. The speed rating of a tire is usually indicated by letters and numbers, showing the tire's maximum speed capacity under specified conditions while carrying the designated load. During driving, the vehicle speed must not exceed the tire's speed rating. This applies to all tires on the vehicle, including the spare tire, which should be inspected monthly. Methods for maintaining car tires: 1. Regularly check the tire surface for cracks or deformations; 2. Avoid sudden acceleration whenever possible; 3. Conduct periodic tire pressure checks.
I'm a car enthusiast who often tinkers with tires. To check the maximum speed, you need to carefully examine the sidewall of the tire, where a series of characters are printed, like 205/55R16 91V. The 91 represents the load rating, and the V is the speed symbol. V indicates a maximum speed of 240 km/h, while common letters like H correspond to 210 and T to 190. Don't guess—always refer to the standard chart, as exceeding the speed limit can cause the tire to overheat, lose control, or even risk a blowout. For accuracy, use a flashlight to illuminate the markings. When buying new tires, don't get the wrong rating—some vehicles have factory-recommended specific grades, and mixing tires with different speed ratings can lead to uneven wear. Regularly check this when replacing tires, and make it a habit to inspect before highway driving to extend lifespan and ensure safety.
