Park Tool DH-1 Dummy Hub

- Also called a sleeping hub, the DH-1 slides into rear dropouts and replaces the rear wheel for chain cleaning and transport.
- The DH-1 works with all derailleur and 1/8" chains.
- The unique design allows shifting with the DH-1 installed.
- Works on frames with both open-type dropouts and 12mm thru axle dropouts.