Park Tool cg-2.3 chain cleaning kit
A dirty drivetrain causes poor shifting and unnecessary wear to expensive parts. The Chain Gang contains everything needed to quickly and easily clean the chain, freewheel cogs, and chainrings. Includes a CM-5.2 Cyclone Chain Scrubber, a GSC-1 GearClean Brush, and an 8 oz. bottle of CB-4 Bio ChainBrite. The CG-2.3 works on all derailleur bikes and many 3-speed and coaster brake bikes.