Loved by bike mechanics up and down the country, Fenwick's FS-1 is a superb 2 in 1 bike degreaser and cleaner that offers unbeatable performance and value for money. It is produced using only the most biodegradable, environmentally friendly raw materials available. For use as a bike degreaser: in its concentrated form, FS-1 can be applied straight onto the drivetrain, agitated after a minute or two, and washed off with a hose pipe - no need for a jet wash and the results are sparkling. For use as a bike cleaner: FS-1 can be diluted with 10 parts water, providing an extremely effective, deep cleansing action for the whole bike. It then washes off with ease and leaves a superior, residue-free finish. FS-1 contains no aggressive ingredients and therefore, can be used every day without causing any damage to the finish of your frame or components. It is safe for use on: hubs, headsets, pivot points, disc brakes, rims, shock units, aluminium, steel, carbon fibre, composites, plastics, decals and rubber.