The Park Tool GSC-3 Drivetrain Cleaning Brush, click to enlarge
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Item # GSC-3

/ Tools / Cleaning

Drivetrain Cleaning Brush

This dual-sided brush is specifically designed for cleaning hard-to-reach areas of the bicycle drivetrain. The long, stiff bristles of the GSC-3 are narrow enough to reach between the gears of tightly-spaced modern cassettes, while the slim contoured end is capable of picking grit and grime out of tight spaces such as derailleur pulley wheels.

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GSC-3 Drivetrain Cleaning Brush