. What is the role of the tire？

Typically mounted on a metal rim, capable of supporting the vehicle body, the buffer external shock, brought into contact with the road surface and to ensure vehicle performance. Tires often in complex and harsh conditions, when it is traveling bear various modifications, load, force, and high and low temperature effect, and therefore must have a high bearing capacity, traction, cushioning properties. Meanwhile, also requires high wear resistance and flex resistance, and low rolling resistance and heat buildup. World consumption of half the amount of rubber for tire production, consumption capacity of the tire rubber is visible.