Park Tool Dummy Hub – DH-1
This Dummy Hub from Park Tool allows you to remove your rear wheel so you can enjoy easy access to clean your bike chain.
Unique and Easy-To-Fit
The Dummy Hub, also known as a sleeping hub, will work with all 1/8″ and derailleur chains and is designed to allow you full access to your chain for cleaning and scrubbing. It easily slides into your rear dropout, clipping securely in place to keep the shape of your chain, which also makes it ideal for transporting without the hassle of having to completely break down your bike. Working with thru axle frames up to 12mm and open dropout frames, the Park Tool Dummy Hub is an essential accessory for bike shops, home mechanics and casual riders.
Features:
- Perfect for drivetrain cleaning or transport
- Chain Compatibility: All 1/8″ and Derailleur Chains
- Frame Compatibility: Open Dropout and Thru-Axle (up to 12 mm)
Buy Park Tool Workshop from Chain Reaction Cycles, the World’s Largest Online Bike Store.



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