A 265.492mph speed record was set on a Harley-Davidson Sportster in 1970. One of the most famous motorcycle racers of all time was Leo Payne. In 1969, while riding his custom-built Sportster, Mr. Payne was the first person to reach a speed of over 200 mph on a non-streamliner motorcycle at the Bonneville Salt Flats. In 1970, a racer named Cal Rayborn broke the world land speed record for a motorcycle, at the Bonneville salt flats in Utah. The streamliner motorcycle that Mr. Rayborn utilized attained speeds over 260 mph, and was powered by a single Harley-Davidson Sportster engine.