The Fenwicks Bike Cleaner 1L has a handy “fill level” indicator embossed on the side so that the Concentrated Bike Cleaner may be added to the correct level for diluting. This Fenwicks Bike Cleaner works by attracting dirt, surrounding it, making it easy to rinse away. It does not use solvents or acids (citrus) to be effective, resulting in a safe product to use. This simple concept works across all types of finishes, be it, matt, carbon or gloss and leaves a clean, contaminate free surface. Fenwicks Bike Cleaner is biodegradable and safe to use on anodising, carbon, plastics, rubber and painted surfaces.