A gummed-up drivetrain is a slow drivetrain. Finish Line's Speed Bike Degreaser uses a powerful solvent to quickly remove grease, grime, and other organic elements from our bike, without scrubbing. It leaves no residue and doesn't use water so that there is no rinsing required. More impressive, it dries so fast we're able to re-apply lube to the chain and cassette right away so we can be back out riding --fast.