Seth Enslow set by Doug Danger. He started practicing by jumping ramp jumps over kegs of beer, cars, motorcycle and other big objects at different events. In 1999, he broke Robbie Knievel's (son of Evel Knievel) record for most motorcycle jumps. However, Enslow's triple clamps broke, which disconnected his front end from the frame, resulting in Enslow diving head first into the asphalt. But Enslow was soon on his feet and even signing autographs before leaving the venue. In 1999, Enslow made his first attempt to break the overall record at fellow motocross rider Mike Cinqmars' property with a ramp designed by
Motorcycle land-speed record The fastest record certified by the FIM is that set in 1964 by the jet-propelled tricycle, "Spirit of America". It set three absolute land speed records, the last at . While such records are usually validated by the Fédération Internationale de l'Automobile, the FIA only certifies vehicles with at least four wheels, while the FIM certifies two- and three-wheelers. Breedlove never intended "Spirit of America" to be classified as a motorcycle, despite its tricycle layout, and only approached the FIM after being rejected for record status by the FIA. "Spirit of America"s FIM-ratified record prompted the FIA to create a