A foot support is disposed in a horizontal plane and is positioned on a housing of the lower section of a motorized wheel chair rearwardly of upwardly facing receptors. A control post has a lower end removably received in the receptors and an upper end having an upper cross piece with spaced hand grips. A control assembly is coupled to the upper cross piece. A motor within the housing powers laterally spaced drive wheels. A steerer within the housing directs directional wheels. The control assembly includes a drive wheel controller for varying the speed of the system and a directional wheel controller for varying the direction of the system.
