Park Tool - GSC-3 Drivetrain Cleaning Brush S3-screwdriver set rear shocks and seatposts

rear shocks and seatposts

For RVC (removeable valve core) Tubes/Tubulars

for cleaving the air with unprecedented aerodynamic efficiency

Compact for easy storage

Featuring an overload clutch that boosts resiliency and a tucked-in profile that houses protection covers on the B-knuckle and outer link that are fully replaceable

Park Tool - GSC-3 Drivetrain Cleaning Brush S3-screwdriver set rear shocks and seatpostsPARK 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.