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 final record before World War II, in 1937 (), which stood for 11 years. After the Second World War, the German NSU factory battled English machines (Vincent HRD, Triumph) for top speed honors through the 1960s, when Japanese-engined streamliner motorcycles appeared, and alternated with Harley-Davidson-engined machines through 1990. The last Harley-Davidson record of stood for 16 years, before a Suzuki-powered machine averaged in 2006. Since then, the BUB team, using a custom-built V4 engine, has alternated with the twin Suzuki engined Ack Attack team. Since late 2010, the Ack Attack team has held the motorcycle land speed record at .