A hopping vehicle is provided comprising an elongated frame having a lower end adapted to engage a ground supporting surface and having handle bars secured to its upper end. A pair of elongated foot levers are pivotally secured at one end to a horizontal carriage assembly longitudinally slidably mounted to the frame near its lower end. A stirrup for supporting an operator's foot is secured to the opposite end of each foot lever. The first end of each foot lever is selectively connected to a gear segment which when connected, rotates in unison with the foot lever. Each gear segment in turn meshes with a stationary gear rack secured to the frame. An elongated helical spring is disposed between the upper end of the gear rack and a spring retainer longitudinally slidably mounted on and near the top of the frame. Connecting bars connect the carriage assembly to the spring retainer so that pivotal action of the foot levers from their upper and to their lower position forces the retainer longitudinally downwardly and toward the gear rack thus compressing the helical spring between the retainer and the gear rack. A release mechanism, which can be either automatically controlled upon engagement of the hopping vehicle with the ground or manually controlled by the operator, disengages the gear segments from the foot levers which permits the spring to expand and provide the propulsion power for the hopping vehicle.