The Skycycle X-2 was a steam-powered rocket owned by Evel Knievel and flown during his Snake River Canyon jump in Idaho in 1974.

Robert Craig Knievel, known professionally as Evel Knievel, was an American stunt performer and entertainer. Throughout his career, he attempted more than 75 ramp-to-ramp motorcycle jumps. Knievel was inducted into the Motorcycle Hall of Fame in 1999. He died of pulmonary disease in Clearwater, Florida, in 2007, aged 69.