Abstract: A wheelchair propelled by rowing action includes a wheelchair frame with a pair of large main rear wheels connected by an axle, a rowing lever pivotally connected to the frame, a steering shaft with a handlebar grip mounted coaxially within the rowing lever and connected by a universal joint to a steering linkage connected to caster brackets mounting small front wheels, a pair of ratcheted sprockets mounted on the axle, a pair of sprocket chain segments connected by cables through pulleys to the rowing lever such that pulling and pushing of the rowing lever alternately causes driving engagement of one of the ratchets with the axles for propulsion and causes the other to slip. The leverage exerted by the rowing lever on the ratcheted sprockets is adjustable.