Water-based active degreaser for fast, effective removal of oil, grease and road gunk from drivetrain and derailleurs (and other areas of the bike).
Instructions for use: Spray liberally over your cassette and derailleurs [or other parts of the bike], and allow to sit for 2-3 minutes. Work the product in with a brush to aid cleaning. Rinse thoroughly and completely with a low pressure water spray. Repeat the process if drivetrain [or frame] is particularly dirty.