What does the H in tires mean?
3 Answers
The H in tires represents the speed rating of the tire. Each tire has its speed symbol (also known as speed rating) molded on the sidewall, which indicates the maximum speed capability of the tire. The specification is usually represented by a set of numbers, where the first number indicates the tire section width and the second number represents the rim diameter, both in inches. The speed rating denotes the maximum speed at which the tire can carry a specified load under defined conditions. Letters from A to Z represent certified speed ratings ranging from 4.8 km/h to 300 km/h. Common speed ratings include: Q for 160 km/h; R for 170 km/h; S for 180 km/h; T for 190 km/h; H for 210 km/h; V for 240 km/h; W for 270 km/h; and Y for 300 km/h.
When it comes to the 'H' in tires, my experience tells me it's a speed rating symbol, capable of reaching up to 210 kilometers per hour. Having driven on highways for many years, I know how crucial it is to choose the right tires. The H rating is suitable for most family cars—safe and practical. I remember that rainy day when I was in a hurry, my car's tires were H-rated, and they held up steadily without any issues. Don't underestimate this letter; combined with dimensions like 205/55R16, it determines the overall performance of the tire. If the speed is too high without an H rating, it's prone to blowouts, especially in summer when the road surface is hot. I advise friends to regularly check tire wear and ensure the H rating matches their driving speed habits. When buying a car, don't just focus on the price—safety should always come first.
Haha, I used to wonder what the H on tires meant until I learned it stands for the speed rating of 210 km/h. As a frequent long-distance driver, I find this symbol super important. Choosing H-rated tires gives me more confidence on highways, unlike the slower T-rated ones. Did you know? Last month I got new tires specifically with the H marking, and the ride feels much more stable. Other parts like the 91 load index are also worth noting. Don't exceed speed limits while driving, or the tires may overheat and deform dangerously. Pro tip: The speed rating decreases as tires age, so remember to check them every 20,000 km. In short, H-rated is definitely the way to go - safety first.
