Finish Line The Grunge Brush cleaning brush (red / dark blue)

Chain and cog cleaning has never been faster or easier!Scrub the chain with the horseshoe-shaped bristles on one end of the Grunge Brush to clean all four sides of the chain.Use the long bristles on the other end of the brush to clean components such as sprockets, derailleurs, cranksets, brakes and pedals. For example, spray the brush with cleaner (e.g. Finish Line EcoTech 2), run the chain through the Grunge Brush, done.