Cyclone Chain Scrubber Park Tool CM-5.3Cyclone Chain Scrubber Park Tool CM 5. 3 Cleans bicycle chain quickly, easily, and effectively without the hassle and mess of removing the chain from the bike. The Cyclone uses a large solvent reservoir, hundreds of rotating bristles, and a two step cleaning process to get chains really clean, improve shifting performance, and extend the life of the chain and other expensive drivetrain parts. Works with all multi speed bikes (5, 6, 7, 8, 9, 10, 11,