What does 84H mean on a tire?
3 Answers
84 refers to the load index, indicating that this tire can bear a maximum load of 500 kilograms. H represents the speed rating of the tire, which denotes the maximum speed the tire can sustain under specified conditions with a designated load. The maximum speed for H is 210 kilometers per hour. Relevant information about tires is as follows: 1. Automobile tires are one of the key components of a vehicle, directly contacting the road surface and working together with the suspension system to mitigate shocks encountered during driving. 2. Tires ensure good ride comfort and smooth driving performance; guarantee excellent adhesion between the wheels and the road surface; and enhance the vehicle's traction, braking, and off-road capability. 3. Tires can be categorized into approximately 8 types based on vehicle classification. Namely: PC—Passenger Car tires; LT—Light Truck tires; TB—Truck and Bus tires; AG—Agricultural Vehicle tires; OTR—Off-The-Road tires; ID—Industrial Vehicle tires; AC—Aircraft tires; MC—Motorcycle tires.
When you see the marking 84H on a tire, it actually tells us about the tire's load capacity and speed limit. The number 84 is the load index, indicating the maximum weight each tire can bear individually, approximately equivalent to 500 kilograms. The letter H represents the speed rating, meaning the tire is designed for a maximum speed of 210 kilometers per hour. Exceeding these load or speed limits can cause the tire to overheat, wear out faster, or even blow out, which is quite dangerous. I remember once driving long-distance with a fully loaded vehicle, not paying attention to the load index, and ended up with a deformed and leaking tire. Fortunately, no accident occurred. Therefore, when buying a car or changing tires, it's essential to match the vehicle's official specifications, carefully read the manual, and regularly check the wear on the tire sidewalls to ensure safety.
After driving for so many years, I'm quite familiar with the 84H marking on tires. The 84 indicates its load capacity, which I remember is around 500 kilograms; H refers to high-speed performance, allowing a maximum speed of 210 km/h. In actual driving, overloading or exceeding speed limits can significantly shorten tire lifespan. When carrying family or transporting goods, I'm particularly careful not to exceed the rated weight; on highways, I also maintain reasonable speeds to avoid prolonged high-speed driving. Choosing brand-name tires when replacing them can enhance durability, and developing the habit of monthly checks on tire pressure and wear conditions is beneficial. In case of any issues, timely replacement can save both hassle and money.
