Park Tool DH-1 Dummy Hub Bike Type_Cruiser Chain Wrap Capacity (teeth): 40

Chain Wrap Capacity (teeth): 40

DSP grips feature increased shock absorption

2 x Wider Round Bases

The Sonic/Ergo 52a is designed to present minimal frontal area to create as little aerodynamic drag as possible

Park Tool DH-1 Dummy Hub Bike Type_Cruiser Chain Wrap Capacity (teeth): 40The 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