Abstract: An exercise device for exercising a person's body is provided. The exercise device comprises a frame having a first side rail, a second side rail substantially perpendicular to the first side rail, a front rail between the first side rail and the second side rail, and a rear rail opposite the front rail and between the first side rail and the second side rail. A front axle is mounted to the front rail and a rear axle is mounted to the first side rail and the second side rail adjacent the rear rail. A wheel is rotatably attached to each end of each axle. A handlebar is pivotally mounted to and between the first side rail and the second side rail. A propelling gear is rotatably mounted on the handlebar between the first side rail and the second side rail with the gear rotatable in only one direction. A freewheel/gear system is mounted on the rear axle and a rotatable gear is mounted to the front rail.