The Park Tool DH-1 dummy hub replaces the rear wheel for chain cleaning or transport of the bike.
Simply fix the dummy, guide the chain through the guide groove and the chain is tensioned again.
During transport, the dummy hub prevents a bouncing on the chain stay and when cleaning your bike, you don't have to worry about residues on the rim or brake disc.
• For standard dropouts and frames with 12 mm thru axle
• Max. chain width for the guide groove: 6.8 mm