This classic pink Bike Cleaner has incredible cleaning power because it contains Nano Technology that breaks down dirt and grime on microscopic levels, while also caring for your bike's delicate finish. Muc-off's pink cleaner is biodegradable, free from acids, CFC's and solvents, and it's alkaline based so you can clean away with a guilt-free conscience. It's safe on all surfaces, and it's even disc brake rotor and pad friendly.