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Evel Knievel is shown in his rocket on Sept. 8, 1974, before his failed attempt at a highly promoted 3/4-mile leap across Snake River Canyon in Idaho

Evel Knievel sails over 13 Mack trucks in the open-air Canadian national exhibition stadium in Toronto, Canada, on August 20, 1974

Evel Knievel's son Robbie successfully jumps the Grand Canyon, AZ on 20 May, 1999. The then world record jump measured 228 feet (some 68 metres)

In March 2010 Seth Enslow broke his own world record by jumping a Harley Davidson motorcycle 183.7 feet at Barangaroo in Sydney, Australia. Seth earlier broke the world record on his first attempt with a jump of 175 feet

X Games freestyle motorcross legend Mike 'The Godfather' Metzger sets a Guinness World Record with a 125-foot long motorcycle jump that included a back flip over a fountain at Caesars Palace on May 4, 2006 in Las Vegas, Nevada. The fountains at Caesars were made famous by the legendary motorcycle jump attempted in 1968 by daredevil Evel Knievel

Ronnie Renner broke his own Guinness World Record for highest motorcycle jump off a quarterpipe at the Red Bull High Rise where he jumped 63 feet 5 inches above the ground on July 25, 2009 at Grant Park in Chicago, Illinois

Robbie Maddison jumps 322 feet at the Rio All Suite Hotel and Casino in Las Vegas, December 2008

Robbie Maddison leaping over the open span of London's Tower Bridge in July 2009

The Crusty Demons perform freestyle motorbike stunts over some Routemaster London buses near Tower Bridge, London, October 2007

A motorcyclist from the Hollywood based Filmka Stunt Team rides through fire during a stunt show in Wuhan of Hubei Province, China in 2006

British daredevil Eddie Kidd prepares to jump ten Radio One disc jockeys with his motorcycle at Brand's Hatch racing circuit, Kent, September 1978. The final DJ is Tony Blackburn. Kidd was the first to jump ten DJs at 80 miles an hour and thereby set a world record

Eddie Kidd leaps the 80 foot broken span of a railway bridge for the film 'Heavy Metal' at Maldon in Essex

Eddie Kidd jumps 14 buses for the world record in April 1978[/align]