A dirty bicycle drivetrain causes poor shifting and unnecessary wear to expensive parts. The Park Tool Chain Gang contains everything needed to quickly and easily clean the chain, freewheel
Product Features The CG-2.3 works on all derailleur bikes and many 3-speed and coaster brake bikes. The Chain Gang includes: CM-5.2 Chain Scrubber GSC-1 GearClean Brush and 8 oz.