Simson Chain cleaner Naturel 500ml cleans and degreases chains, gears and derailleurs of bicycles, mopeds and motorcycles. Particularly suitable for use with the separately available Simson Chain Cleaning Device, but it can also be used without. Apply the chain cleaner to the chain and remove the dirt and old grease with a clean cloth. After cleaning the chain should be lubricated, for instance with the Simson Chain Spray.