Park Tool Dummy Hub (DH-1) BSS-000888 Capped end for safety and

Capped end for safety and comfort

3mm bent internal — opens from 22mm down to 2mm (center to center)

a potential area for saturation and leakage

the MTC-20 is the perfect size for a jersey pocket or saddle bag

it’s just damned good lookin’

Park Tool Dummy Hub (DH-1) BSS-000888 Capped end for safety andAbout Park Tool Dummy Hub (DH 1) The DH 1 Dummy Hub slides into the rear dropouts of a bicycle frame and replaces the rear wheel, keeping the chain in place while the wheel is removed for cleaning, service, or transportation. The unique design allows the bicycle to be pedaled and the derailleur to be shifted, making the DH 1 an essential tool for chain cleaning or diagnosis of drivetrain issues. Features Compatible with all multi speed and 1 8" chain