How fast does 'H' represent a tire can run at high speed?
2 Answers
H represents that the tire can run at a speed of 210 kilometers per hour on highways. Generally speaking, the speed limit letters for household tires include Q, R, S, T, U, H, V, W, and Y, among which Y represents the highest speed rating of the tire, with a maximum speed of 300 kilometers per hour. The functions of tires are to support the full weight of the vehicle, transmit the torque of traction and braking, prevent vibration and damage to vehicle components, and ensure driving safety. The maintenance methods for tires are: 1. Regularly clean the stones in the tire gaps; 2. Reduce tire exposure to sunlight; 3. Frequently check the tire pressure; 4. Pay attention to suspension maintenance; 5. Regularly inspect front wheel alignment; 6. Be mindful of driving habits.
I've been driving for decades and know a thing or two about tires. The H stands for the tire's speed rating, meaning it can handle a maximum of 130 miles per hour, approximately 209 kilometers per hour. Once on the highway, when I was overtaking at close to 120, I realized I was nearing the limit. Driving too fast beyond this speed can cause the tires to heat up and deform, possibly even leading to a blowout, especially on slippery roads or during sharp turns. Safe driving is key, and I always remind myself to check the tire's wear and whether the pressure is right. If the tires are worn out or underinflated, their maximum speed tolerance drops significantly—never take it lightly.
