The Sidehackers (1969)
Genres: Drama, Action
Cast: Ross Hagen, Diane McBain, Michael Pataki
The Sidehackers is a 1969 American action film about motorcycle racing with a twist. Each motorcycle has a sidehack, in which a passenger rides and tilts to one side or another when going around curves. The credits thank the "Southern California Sidehack Association"; sidehacking is also known as sidecarcross or "sidecar motocross racing".