What does 3T represent on car tires?

[ChristianLee]

3T on car tires represents the treadwear index, traction index, and temperature index. The treadwear index reflects the tire's wear resistance; a higher value indicates greater wear resistance, harder rubber, and poorer comfort, while a lower value indicates less wear resistance, softer rubber, and better comfort. Tires are circular elastic rubber products mounted on various vehicles or machinery for rolling contact with the ground. They are often used under complex and demanding conditions, enduring various deformations, loads, forces, and high and low temperatures during operation. Therefore, tires must have high load-bearing capacity, traction performance, and cushioning performance. Additionally, they are required to have high wear resistance and flex resistance, as well as low rolling resistance and heat generation.