What Do the Parameters on a Tire Represent?
1 Answers
The parameters on a tire represent: production date and tire specifications. Taking a tire model 185/60R17 89H as an example, the parameters respectively represent: 185 indicates the tread width is 185mm; 60 indicates the aspect ratio of the tire section is 60%; R indicates the tire has a radial structure; 17 indicates the rim diameter is 17 inches; 89 indicates the load index; H indicates the speed rating. Automobile tires are one of the important components of a vehicle, directly in contact with the road surface and working together with the vehicle suspension to mitigate the impacts encountered during driving. They ensure good ride comfort and smooth driving, maintain excellent adhesion between the wheels and the road surface, improve the vehicle's traction, braking, and off-road capability, and bear the weight of the vehicle. During the use of tires, tire pressure is a very important indicator. It is essential to ensure that the tire pressure matches the manufacturer's recommended pressure. Otherwise, whether the tire pressure is too high or too low, it will significantly damage the tire's lifespan. If the tire pressure is too high, the tread pattern in the center of the tire will wear more severely than the patterns on the sides. Moreover, when the tire pressure is too high, the contact area between the tire and the ground is reduced. When the vehicle accelerates, the part of the tire that leaves the ground and then returns to the ground will deform due to the acceleration, resulting in a wave-like phenomenon. This not only increases tire resistance, affecting the vehicle's acceleration performance, but also causes steering wheel vibration and deviation.
