What does 91H on the tire mean?
4 Answers
91 represents the load index of the tire, with 91 corresponding to a load capacity of 615 kilograms per tire. H denotes the speed rating of the tire, indicating the maximum speed at which the tire can carry a specified load under defined conditions. The maximum speed for H is 210 kilometers per hour. More information about tires: 1. Tires are circular elastic rubber products mounted on various vehicles or machinery to roll on the ground. 2. Tires are usually installed on metal rims to support the vehicle body, cushion external impacts, ensure contact with the road surface, and maintain the vehicle's driving performance.
I'm the kind of seasoned driver who loves sharing driving experiences. The 91H marking on tires has two key meanings: 91 is the load index, indicating the tire can bear a maximum weight of 615 kg, which should be selected based on your vehicle's weight—too heavy and it can damage the tire; H is the speed rating, meaning the tire can support speeds up to 210 km/h. Choosing the wrong specifications, like using a tire with insufficient load capacity on a heavy vehicle, can cause overheating and blowouts at high speeds—how dangerous! When driving an SUV, I pay extra attention and always refer to the manufacturer's manual for recommended tire specifications, never cutting corners to save money. Regularly check the sidewall codes on tires for wear or aging, along with maintaining proper tire pressure, which can significantly extend tire life and prevent accidents. These parameters aren't just numbers—they're crucial for safety on every drive, and you can't afford to be careless. Nowadays, many car owners overlook this, so I remind them to develop good habits to ensure their vehicles remain stable and reliable at high speeds or when fully loaded.
As a novice car owner, I was curious about what 91H on tires means. After researching, I learned that 91 refers to the load index with a maximum capacity of 615 kg, and H represents the speed rating up to 210 km/h. This made me realize that choosing tires isn't just about appearance; they must match the vehicle: sports cars need higher speed ratings, while family cars prioritize load index. When driving on highways daily, the right specifications make tires more durable. I recommend paying more attention to automotive forums or professional websites to learn how to check tire markings and comparing them with your vehicle model when replacing tires at reputable shops. This knowledge has boosted my driving confidence and helps avoid delays caused by sudden failures. Tires are like shoes for cars—choosing the right ones ensures a stable and speedy ride.
91 is the load index of the tire, capable of carrying 615 kilograms, and H indicates a speed rating supporting a maximum speed of 210 kilometers per hour. When selecting tires, match them according to the vehicle manual and avoid arbitrary replacements. Otherwise, the tires may be prone to damage under heavy loads or high speeds, such as deformation or blowouts due to insufficient load capacity. Regularly check these codes on the side of the tire to ensure driving safety. The higher the speed, the faster the tire wears, and a higher speed rating can reduce risks. A simple check can help avoid trouble.
