Park Tool - GSC-3 Drivetrain Cleaning Brush Stock Item:Park Tool Drivetrain Cleaning Brush and our acclaimed Roc Loc®

and our acclaimed Roc Loc® Sport MIPS® system for fast

it is compatible with Shimano and SRAM 11 speed road shift levers

Formulated without any harsh chemicals or abrasives to ensure it is safe to use on the wide range of materials used in shoes

8 cm operating temp -20 to 50 °C compatible with iOS only (iPhone

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

Park Tool - GSC-3 Drivetrain Cleaning Brush Stock Item:Park Tool Drivetrain Cleaning Brush and our acclaimed Roc Loc®PARK 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.