Park Tool DH-1 Dummy Hub Swim Type_Swimskin 0 steps up and

0 steps up and

Axle durability equal to high-grade models

External shift cable routing for low friction

and a new fishbone tread design for better handling in corners

considering frame optimization

Park Tool DH-1 Dummy Hub Swim Type_Swimskin 0 steps up andThe 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. Compatible with all multi speed and 1 8" chain Compatible with quick release and 12 mm