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 the derailleur and chain. Saves wear and tear on your chain and freewheel. Works great on brakes or other places where dirt collects.
Made in the USA with domestic and foreign components.
About 8" long
The co-owners were hands-on bicycle repair folk back in the 1950s when bikes were simpler. Starting in the 1960s, bikes started getting more complex and the need for purpose-specific bike tools arose and Howard and Art met that need. Now more than 50 years into its journey, Park Tools is still developing and producing some of the finest bicycle tools in existence.