They are tires mounted on cars. They are mainly used for high-speed exercise on good roads. The maximum traveling speed is up to 200 km/h. It requires comfortable ride, low noise, good maneuverability and stability. Most of the tire structures use radial structures. According to the requirements of the driving speed, it is divided into different series. In the standards and manuals, 95, 88 series are common bias tires, and 80, 75, 70, 65 series are radial tires.