Harley-Davidson model output first

Year 1903, Arthur Davidson and his brother Walter William Harley neighbors together to create Harley-Davidson motorcycle first. A year later they began to produce motorcycles for sale. Year 1909 Harley-Davidson introduce V-Twin engine is the first, with two-cylinder configuration as the letter "V". Engine has a great voice, and seemed to roll male, older machines do not become the classic American engine
During the year 1914, form the basis of modern motorcycles start form. Include the form of laying on the engine between front and rear wheels and a chain to mentransger energy from engine to rear wheels.
During the PD I (1914-1918), a motorcycle to be a means of transportation for a strong military and the United States of Europe, able to reduce the burden on roads and communications equipment capable of carrying far more to the front line combat. After the war, the use of motorcycle wide spread to Europe and America.

Until the 1950s, most of the motorcycles in the United States in the northern production by Harley-Davidson or by companies such as British Birmingham Small Arms Company (BSA), Norton, and Triumph.

Period 1960 and 1970, Japanese companies like Honda, Kawasaki, Suzuki, and Yamaha, start to introduce the development of motorcycles with engine and Suspensi and they can compete with the motor manufacturers who already have first. Soon, motorcycles with engine 4 steps up to 750 cc in 1200 equipped with a large production that they will dominate the market road motorcycles, while the engine is 2-step pro-cc 250 and 500 will take the market off-road motorcycles