Everyone remembers Snake River Canyon as a motorcycle jump. It wasn’t. It was a steam-powered rocket built by a US Navy rocket engineer—and the way it made thrust is the part nobody talks about. . . . #OneLungRacing #2Stroke #EvelKnievel #SnakeRiver #Skycycle #SteamRocket #MotorcycleHistory #Stunt #1974 #Harley #XR750 #RobertTruax #Idaho #Daredevil #MythBusted #RocketScience #MotorcycleStunts #VintageMotorcycles #Motorbike #BikeHistory #70s #AmericanHistory #Engineering #Legend