Motorcycle was producing over 500 bikes. Other British firms were Royal Enfield, Norton and Birmingham Small Arms Company who began motorbike production in 1899, 1902 and 1910, respectively. Indian began production in 1901 and Harley-Davidson was established two years later. By the outbreak of World War I, the largest motorcycle manufacturer in the world was Indian, producing over 20,000 bikes per year. During the First World War, motorbike production was greatly ramped up for the war effort to supply effective communications with front line troops. Messengers on horses were replaced with despatch riders on motorcycles carrying messages, performing reconnaissance and acting
Homebuilt machines many enthusiasts have constructed their own computers. A homebuilt vehicle is a wider concept than a kit car. A homebuilt vehicle is a motor vehicle (car, truck or motorcycle) built by an individual instead of a manufacturer. These machines may be constructed "from scratch", from plans, or from assembly kits. Outside of the United States (for example in Russia) people wishing to build such complex machinery often have no professional networks to rely on for spare parts, plans, or advice in the matter and therefore have to rely on their ingenuity and intuition in order to build a machine that