Reilly’s Wheel Spare Wheel Prototype. A spare wheel and tyre assembly made of two, or more, interlocking parts and a hard or sponge like extruded tyre that never deflates. The spare wheel assembly is installed face to face with the punctured or deflated conventional wheel on the vehicle and runs parallel with it while bearing its share of weight and saving the conventional wheel from further damage, thus the vehicle runs on five wheels until the conventional wheel can be repaired. Installs in seconds even by the physically impaired. Since the introduction of the bicycle probably the most important simple mechanical patent written by a single inventor, the Irishman who re-invented the wheel, James J. Reilly III.