The Park Tool GSC-1 Gearclean Brush helps keep your bicycle drivetrain clean and running smoothly. Its comfortable handle and tough bristles remove dirt and grime from the derailleur and cassette, while the specially shaped toothed end reaches deep between the gears to clear stubborn build-up. Regular cleaning helps reduce wear on your chain and cassette. Use the Park Tool GSC-1 Gearclean Brush on derailleur pulleys, brakes and other hard-to-reach areas where dirt collects.Features:- Tough bristles for effective cleaning- Comfortable handle for easy use- Toothed end reaches between gears- Cleans cassettes and derailleurs- Suitable for pulleys, brakes and more

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