Motorcycle a three-speed gearbox and belt transmission. It was so popular with its users that it was nicknamed the "Trusty Triumph." By 1920, Harley-Davidson was the largest manufacturer, with their motorcycles being sold by dealers in 67 countries. In the 1950s, streamlining began to play an increasing part in the development of racing motorcycles and the "dustbin fairing" held out the possibility of radical changes to motorcycle design. NSU and Moto Guzzi were in the vanguard of this development, both producing very radical designs well ahead of their time. NSU produced the most advanced design, but after the deaths of four
Vento (motorcycle manufacturer) Yamaha, Suzuki, Honda and Kawasaki combined. Vento products were approved by the National Highway Traffic Safety Administration (United States Department of Transportation), and certified by both the United States Environmental Protection Agency and the California Air Resources Board, meeting the emission regulations. Vento motorcycles have somewhat bulky bodies which resemble larger cruisers made by other manufacturers, but their V-twin 250 cc engines are comparatively small. Though large, the Vento motorcycles are not particularly heavy—typically around 375 pounds. Vento (motorcycle manufacturer) Vento was a motorcycle, scooter and ATV manufacturer from the United States. The name of the company is Italian for