The chain is a key part of the bike and therefore necessary to take extra care of it. Cleaning and lubricating the chain are vital steps in the maintenance of the bike. Firstly, before re-greasing the chain, it must be cleaned in order to remove any residues of old oils, dirt and other deposits from the road. To do this, generously apply to the chain, derailleurs and cassette sprockets, and even cogsets, with minimal effort. Spray the fast-acting formula, letting it work into tight spaces and difficult angles. Then with a clean brush, scrub the dirt, before wiping away excess dirty fluid with a cloth. Rinse with water if necessary and then dry.