A control device of an internal speed change device of a wheel hub for clutching operation includes a rod; a lever installed on the rod; the lever being connected to a controlling claw sliding block; an electric sliding block installed on a lever sleeve; t...

A quick detaching inner clutch comprises an inner clutch; a fixing shaft for assembling the inner clutch; a hub for receiving the inner clutch and the fixing shaft; wherein an axial center of the fixing shaft is formed with a penetrating axial channel for ...