A car is composed of tens of thousands of parts, and each part generally only serves one purpose. The tire is also one of the auto parts, but it plays a different role from other parts. It has the following four functions in the driving of the car.

● Bearing load

Whether it is its own weight, passengers or loads, the weight of a car must be transmitted to the tires through the car body, and finally the tires shoulder all the burden. Therefore, the tires play a very important role in carrying.

●Generate driving force and braking force

Because the tire is the only part of the car that comes into contact with the road, no matter whether it is starting, driving, braking, or stopping the car, it must "communicate" with the road through the tire, and fulfill the wishes of the car or car driver through the tire.

●Cushioning and shock absorption

The unpaved roads are mostly bumpy gravel roads. There will be many gravel, pits and bags on the road. Even on the paved road, there are often some obstacles that affect the normal driving of the car. In this case, the tire will exert its excellent cushioning and shock absorption functions, enabling the car to move forward in a more comfortable situation. This is because the tire itself is made of rubber with elasticity of about 50%, coupled with the excellent shock absorption function of the air in the tire, so that the car can easily move forward on harsh roads.

●Change the direction of the car

Whether a car turns or turns around, it needs to be completed by the car's tires. It often changes the direction of the car according to the driver's wishes.

It is precisely because tires have the above four functions that cars can drive safely, freely, quickly, and comfortably on uneven roads; also because they have the above four functions, tires are among the entire car’s parts. It seems very important.

In fact, we can use one sentence to summarize the role and importance of tires: when a person sits in the car, then the person is actually completely handed over to the car, and the car is actually all handed over when the car is driving. Four tires were given. Once there is a tire problem, both the vehicle and the people in the vehicle will be in great danger. Therefore, every driver should be very concerned about his tires.