GSC-1 Gearclean Brush Tubes rise from the ashes of

rise from the ashes of your dumpster fire of a life with these red frames with rose lenses and a little hair of the dog

Find Your Pop

If you're looking for an easy way to ride your bicycle indoors

and wax that build up on a bike's drivetrain

11-32 requires GS rear derailleur

GSC-1 Gearclean Brush Tubes rise from the ashes ofPark Tools GSC 1 GearClean Brush has a unique design. A large comfortable handle with a curved, toothed end reaches dirt deep between the gears, and tough nylon bristles clean the derailleur and chain. Saves wear and tear on your chain and freewheel. Works great on brakes or other places where dirt collects. Compatible with most 512 speed cassettes and freewheels. Handy size for quick cleaning anywhere. Made of sturdy nylon.