Park Tool GSC-1 Gearclean Brush
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- Trustpilot review 9.3 out of 45.227 reviews
The Park Tool Gearclean Brush GSC-1 Cassette brush has a unique design. A comfortable handle, the serrated side to easily remove dirt between the cogs with, and a rugged nylon brush to clean off the derailleurs and chain with. Also works perfectly on rim brakes and disc brake calipers.