Park Tool GSC-3 cleaning brush drive

This double-sided brush was specially developed for cleaning hard-to-reach areas of the bicycle drivetrain. The long, stiff bristles of the GSC-3 are narrow enough to fit between the gears of modern cassettes with tight spacing, while the slim, contoured end is capable of removing dirt and grime from tight areas, such as derailleur wheels.

Features:

• For hard-to-reach areas
• Extra long and stiff bristles
• Ideal for chainrings and cassettes
• Backside for cleaning derailleur pulleys