Park Tool - GSC-3 Drivetrain Cleaning Brush Stock Item:Park Tool Drivetrain Cleaning Brush Replaceable parts including push pin

Replaceable parts including push pin tip and stainless steel blade

Lowered Profile Nylon Glass Fiber Base

Model number 100090

using Basil's MIK System

The perfect ergonomic fit to the hand makes it easy and comfortable to work with

Park Tool - GSC-3 Drivetrain Cleaning Brush Stock Item:Park Tool Drivetrain Cleaning Brush Replaceable parts including push pinPARK 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.