Park tools chain gang cg2
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 chainringsthe chain gang includescm 52 chain scrubber gsc 1 gearclean brush 8oz bottle of cb 2 citrus chain britethe cg 22 works on all derailleur bikes and many 3 speed and coaster brake bikes