Muc-Off Punk Powder Bike Cleaner (4 pack) Muc-Off's Punk Powder Bike Cleaner (4 pack) has sustainability built in. Supplied in four 30-gram sachets, the fast-dissolving powder makes up one litre of bike cleaner, for four litres total, and is as effective as the original bike cleaner at clearing dirt and grime off your bike. The benefit of this new formula is its environmentally-friendly credentials. It uses biodegradable ingredients, with 75% being plant-based, and there is significantly less packaging used. The sachets are compostable, printed with plant-based inks, and the box is constructed from FSC recycled card. Safe to use on seals, carbon fibre and disc brake pads and rotors, Punk Powder is the ultimate choice for those looking for an effective cleaner that's better for the environment.  Please note: Unused sealed sachets should be stored inside the box in a well-ventilated, dry place and protected from moisture, heat and direct sunlight. Can be stored for up to three years.