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Park Tool DH-1 Dummy Hub
Shift through the range of gears with rear wheel off
Works with any derailleur and chain combination
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