Finish Line Grunge Brush
Chain and gear cleaning has never been faster or easier! Scrub the chain with the compact bristles of The Grunge Brush to clean all four sides of a chain. Use the long bristled end to clean other components like sprockets, derailleurs, cranksets, brakes and pedals. Regular component cleaning prevents premature wear and tear on chain and sprockets, eliminates chain skipping caused by dirt and grunge, and assures smooth operation of drive train and brakes.
Picked up one of these after I saw a friend using it, and I'm very glad I did! First usage got about 80% of the gunk off my chain; both inside the links and outside! The brush on the end of great for breaking up gunk on gears too. Doesn't wear as fast as the park tool gear brush does, but it's also not as good for hard-to-reach areas. Best keep it to the chain where it works best!