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.

An earlier prototype was designed, named the Skycycle X-1, by Doug Malewicki and retired U.S. Navy engineer Robert Truax.

However, the winds blew the rocket back to the launch side, crashing at the bottom of the canyon, barely missing the river.

In the era before cable networks, the Sunday afternoon jump was covered live by Top Rank on paid closed-circuit television in several hundred theaters and arenas,[17][18][19] promoted by Bob Arum with an average price of ten dollars.

[24][25] A memorial to Knievel is located near the Perrine Bridge,[26] which crosses the Snake River about 1.6 miles (2.6 km) west of the jump site.

[29] Braun successfully flew his rocket, named Evel Spirit, across the Snake River Canyon on September 16, 2016.