The Biodegradable Bike Cleaner Super Concentrate is our Bike Cleaner in most concentrated form. It is also more economically priced for those that prefer to mix their own bike cleaner in the concentration they prefer. The standard Concentrate is ideal for bike wash bays where mixing of small sachets is too time consuming. It is not as concentrated as the 30 ml sachets.  The Ready-to-use Foam Spray is conveniently pre-diluted and can be sprayed directly onto your bicycle for general cleaning.