What does 84T and 84H mean on tires?
2 Answers
Tire markings 84T and 84H indicate the meaning of these numbers in the tire model specifications. The number 84 represents the load index of the tire, which is the maximum weight the tire can bear. Specifically, 84 means the tire can support a maximum total weight of 500 kilograms. Below is an introduction to tires: 1. Overview: Tires are circular elastic rubber products mounted on various vehicles or machinery that roll on the ground. 2. History: In 1845, R.W. Thomson, a civil engineer from Scotland, invented the pneumatic tire and obtained a patent from the British government for his work titled "Improvements in the Wheels of Carriages and Other Vehicles." The first pneumatic tire was born on December 10 of the same year. Tires are usually mounted on metal rims, supporting the vehicle body, cushioning external impacts, and ensuring contact with the road surface to maintain driving performance. 3. Function: Tires are often used under complex and demanding conditions, enduring various deformations, loads, forces, and high and low temperatures during operation. Therefore, they must have high load-bearing capacity, traction performance, and cushioning performance. Additionally, they must possess high wear resistance and flex resistance, as well as low rolling resistance and heat generation.
When it comes to the meanings of 84T and 84H on tires, these actually relate to fundamental knowledge about driving safety. As someone who frequently researches automobiles, the number 84 on the tire refers to the load index, indicating the weight the tire can bear—84 corresponds to approximately 545 kilograms. The letters T and H that follow are speed ratings: T signifies a maximum safe speed of 190 kilometers per hour, while H represents 210 kilometers per hour. These markings can be seen on the sidewall of the tire. If they don’t match the vehicle’s load or maximum speed requirements—such as if the car is too heavy or driven too fast—the tire can overheat and burst, posing significant risks. I recommend that car owners always check the recommended values in the vehicle’s manual when replacing tires or during maintenance, as choosing the right tires can avoid unnecessary trouble. In daily use, especially during high-speed driving, ensuring these specifications are correct is crucial for protecting both yourself and your car.
