Abstract: A discarded automobile tire is utilized as a part of a mobile toy or exercising device. A tire riding vehicle is provided with a base support extending parallel to the space between the two tire beads of the automobile tire. Two spaced axles extend normal to and are supported by the base and in turn support spaced apart rollers which ride on and are supported by the automobile tire beads. Flanges are associated with the rollers, are disposed inside of and abut against the tire beads, and thus maintain the rollers against lateral displacement from the tire beads. A platform is supported by the axles and supports a rider on the vehicle. A platform is preferably provided for each foot of a rider and carries a spring loaded brake and also pole supports. Poles so supported may be used by a rider to guide, steer, and brake the vehicle. The poles are spring loaded and normally in non-braking positions. Rollers or tongues are employed resisting release of the vehicle from the automobile tire.