The size of motorcycle winding pile is ordinary, and the length of motorcycle is 50 cm. The length of a three-wheeled motorcycle is 40 cm. The side tricycle is 80 cm long. The distance between the pile and the sideline is the width of the car plus 30 cm. The end line is three times the length of the car from the last pile. Motorcycle is a kind of two-wheeled or three-wheeled vehicle driven by gasoline engine and controlled by handlebar, which is light, flexible and fast. Widely used in patrol, passenger and freight transportation, etc. It is also used as sports equipment. Generally speaking, motorcycles are divided into street cars, road racing cars, cross-country motorcycles, cruise cars, station wagons and so on.