An occupant propelled device having at least one hydraulic cylinder, a platform
and a housing. The at least one hydraulic cylinder has at least two chambers in
fluid communication. The platform is attachable to the at least one hydraulic cylinder,
such that upon movement of the platform a hydraulic fluid is displaced from one
chamber to the other chamber. The housing is attachable to the platform at a pivot
point and has at least one axle adapted to receive at least one wheel.