History of the motorcycle by 1902, and would rise to 32,000, its best ever, in 1913. Indian produced over 20,000 bikes per year. The oldest surviving Russian-manufactured motorcycle, the Rossiya, dates from 1902. The American company Harley-Davidson started producing motorcycles in 1903. During this period, experimentation and innovation were driven by the popular new sport of motorcycle racing, with its powerful incentive to produce tough, fast, reliable machines. These enhancements quickly found their way to the public's machines. Chief August Vollmer of the Berkeley, California Police Department is credited with organizing the first official police motorcycle-patrol in the United States in 1911. By 1914,
Motorcycle engine experimented over a period of two years with its dual-overhead-cam 500 cc V8, the Otto Cylindri, in the 1950s. Some custom and one-off motorcycles use more than six cylinders. For example, the Boss Hoss motorcycle uses (5,700 cc, 6,000 cc and 8,200 cc) Chevrolet V-8 crate motors. In 2003 Daimler-Chrysler manufactured a limited number of Tomahawk concept vehicles with a Dodge Viper V-10 engine. Australian company Drysdale have built short runs of 750 cc V8 superbikes and 1L V8 roadgoing motorcycles, both with engines specifically developed for the purpose. No major motorcycle manufacturer has used eight or more cylinders, although