Park Tool - GSC-3 Drivetrain Cleaning Brush Stock Item:Park Tool Drivetrain Cleaning Brush USB type: USB-C

USB type: USB-C

The tread is made with our Race Formulation powered by Graphene + Silica

The jack-of-all trades of road rims: light

1 x M5 x 12mm

31 oz and exquisite case design with IPX6 waterproof rate

Park Tool - GSC-3 Drivetrain Cleaning Brush Stock Item:Park Tool Drivetrain Cleaning Brush USB type: USB-CPARK TOOL GSC 3 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.