The Muc-Off Nano Gel Bike Cleaner Concentrate - 500ml Pouch is an eco-friendly bike cleaner concentrate that penetrates deep into dirt, oil and grime and gently breaks it down on a molecular level. This is safe for use on carbon fibre, and can be used on your bike's frame, forks, headsets, shock units, fairings, bars, grips, seat, pivot points, screens, aluminium, anodised metal, paintwork, chrome, carbon fibre, steel, rims, wheels, spokes, hubs, disc brakes, suspension parts, gears/sprockets, plastics, composites, decals and rubber. The 500ml refill pouch uses 89 per cent less packaging than the standard version but can make up to two litres of Muc-Off Bike Cleaner. It can also be used as a powerful degreaser in its concentrated form and works brilliantly chain cleaning devices. Muc-Off's award-winning formula contains no harmful acids, CFCs or solvents, and is fully biodegradable - allowing you to clean your bike guilt-free.