A tunnel-expansion portion is provided at a front portion of a tunnel portion. The bicycle wheel spinner assembly is adapted for use on a bicycle wheel having an axle and a plurality of spokes, includes a hub assembly, an end cap member and a rotor. The actuators are powered by an electrical energy generating device, such as a photo cell or a photovoltaic element, which is coupled to the machinery and located across an air gap from a source of radiant energy such as an array of light emitting diodes.