Park Tool DH-1 Dummy Hub Atom Savant even if the gasket is

even if the gasket is removed

This handy shop-grade tool works on 5 to 12 speed chains

each model has its own special features unique to that wrench

A bench-mounted version of our popular PCS-10

Park Tool DH-1 Dummy Hub Atom Savant even if the gasket isPark 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