Park Tool GSC-1 sprocket cleaner

Park Tool GSC-1 sprocket cleaner

With its robust and flexible nylon brush and sickle-shaped rasp bar, the GSC-1 sprocket cleaner tackles the coarsest dirt on the cassette, rear derailleur, chain and every other part of the bike. This prevents premature wear and ensures smooth and safe operation of the corresponding components. Thanks to its handy dimensions, the GSC-1 is also suitable as a practical companion for on the go.