Bike spray value duo pack the muc off bike care duo kit covers stage 1 and 2 in the muc off cleaning system our award winning nano tech bike cleaner cuts through dirt mud and grime quickly and safely without the need for acids or dangerous chemicals our unique formula is also 100 biodegradable so its safe for your bike and the planet after youve given your bike a good clean with our nano tech bike cleaner its time to add some protection muc off bike protect is the ultimate post wash wa