Abstract: The present invention provides an economical, universal wheelchair conversion kit which offers two, hand-powered, variable-resistive, drive mechanisms for the main wheels of a wheelchair which can be retrofitted to existing wheelchairs and that provide the operator of the vehicle means of easy mobility, independent brakes for safety and maneuverability, and the resistive means for exercising the upper body musculature and the cardiovascular systems while using the chair in either a mobile or stationary configuration. The present invention enables the elevation of the wheelchair rear wheels such that the wheelchair is dedicated to an exercise function. In all, the present invention provides a comprehensive solution to the mobility and immobility health related problems of many wheelchair bound persons.