A motorcycle is a vehicle with two wheels and an engine. = motorbike. Bicycle or tricycle propelled by an internal combustion engine. The first motor tricycle was built in 1884 in England, and the first gasoline-engine motorcycle was built by Gottlieb Daimler in 1885. Motorcycles were widely used after 1910, especially by the armed forces in World War I. After 1950 a larger, heavier motorcycle was used mainly for touring and sport competitions. The moped, a light, low-speed motor bicycle that can also be pedaled, was developed mainly in Europe, and the sturdier Italian-made motor scooter also became popular for its economy
36) as limited to motor cars (self-propelled vehicles) designed to travel on not more than three wheels, and weighing unladen (that is, without water, fuel, or accumulators necessary for propulsion) not more than three hundred weight (336 lbs
Sport of running motorcycles on tracks, closed circuits, or natural terrain. The main types are (1) road racing, conducted on a course made up wholly or partly of public roads; (2) trials, conducted both on and off the highway; (3) speedway racing, conducted on a short, flat, oval dirt track; (4) drag racing, conducted on a straight quarter-mile strip of pavement; (5) hill climbs, conducted on a large dirt mound; and (6) motocross. The first international road race took place in Douran, France, in 1905. The most famous race is the Tourist Trophy, established on Britain's Isle of Man in 1907. Motorcycle racing in North America began in 1903; since 1937 the Daytona 200-mi (320-km) race has been the leading U.S. race