Park Tool Gear Clean Brush

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Park Tool’s GSC-1 GearClean® Brush has a unique design. A large comfortable handle with a curved, toothed-end reaches dirt deep between the gears, and tough nylon bristles clean th e derailleur and chain. Saves wear and tear on your chain and freewheel. Works great on brakes or other places where dirt collects. 10 speed compatible Handy size for quick cleaning anywhere Made of sturdy nylon Show more