Hartmann Wheel Hangers make removal and installation of wheels easy. Simply use this hanger in place of the lug bolt at the 12:00 position and slide your wheels on and off without having to worry about dropping your wheel on it's face or scratching finished calipers on the back of the wheel. The Hartmann Wheel Hanger makes spacer install a breeze as well, no more frustrations trying to line up the bolt holes on your hubs, rotors, spacers and wheels, thread in the hanger and everything lines up perfectly.