Abstract: A shock absorber for use with a cycle comprises elongated first and second tubular members and a biasing assembly. The first tubular member is associated with the cycle's frame and has a longitudinal axis. The second tubular member has a lower end portion adapted for connection to foot supports and an opposite upper end portion for connection to the cycle's seat assembly such that the foot supports and the seat assembly are interconnected for common movement. The second tubular member is slidably disposed with respect to the first tubular member for movement along the longitudinal axis away from an initial position as determined by a pre-impact condition.

Abstract: A cycle adapted to travel in an upright position along a support surface comprises a rigid frame, a plurality of wheels rotatably journaled with respect to the frame, a suspension tube mounted to the frame for reciprocal movement in upward and downward directions, a seat assembly disposed on an upper end portion of the suspension tube, a drive assembly disposed on a lower end portion of the suspension tube for common movement with the seat assembly, a steering mechanism, and a biasing assembly disposed between the frame and the suspension tube. The biasing assembly is operative to bias the suspension tube into a pre-impact position relative to the frame such that movement of the suspension tube in the downward direction is resisted by the biasing assembly through exertion of a restorative force which urges the suspension in a upward direction toward the pre-impact position, thereby cushioning the seat assembly and the drive assembly relative to impacts occurring during operation of the cycle.