Peaty's Foaming Drivetrain Degreaser is the ultimate bike-specific foaming high-performance grease remover for your drive. The powerful, biodegradable formula was specially developed to specifically dissolve the dirt and at the same time degrease the chassis. The Foaming Drivetrain Degreaser is gentle on your bike and the environment. Apply the product liberally on the chain, cassette, chain rings and rear derailleur, allow to act for two minutes and then spray off.