1892, Michelin company, French brothers Andre Michelin and edouard michelin invented a detachable pneumatic rubber tire. In the past, only specialized repairmen could handle tire puncture accidents, but now ordinary people can repair them in a quarter of an hour. This invention has affected the whole world. 1895, Michelin brothers sent a "lightning" car with detachable tires for the first time to participate in the Paris-Bohr-Paris traffic jam. Tire cars officially entered the historical stage and quickly spread to the whole world.
1908, rice company developed a double-type wheel, which effectively solved the tire load problem of heavy trucks. 1937, michurin company developed radial tires. This kind of tire tread named "flying cage" is reinforced by multiple layers and fastened by multiple steel cord layers. These cord layers are arranged vertically with the tire steel wire, which greatly improves the stability of the tire driving direction. 198 1 year, British Deng Lupu company invented a new type of tire, which can still run even if the tire is punctured, and the tire will not leave the rim. The inner surface of the crown is coated with polyglycol, which is both a sealant and a lubricant. The safe life of this kind of tire is only 25,000 kilometers.