Park Tool has made the ultimate in shop convenience with the DH-1 Dummy Hub. No more fumbling with your chain with the rear wheel off. The DH-1 slides into the rear dropouts or thru-axles in place of the wheel and allows for shifting through the complete range of gears with any derailleur and 1/8" chain. It's also a must-have if you are transporting your bike with the rear wheel off.Features: Shift through the range of gears with rear wheel off Works with any derailleur and chain combination

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New