Fenwick's: The Concentrated Bike Cleaner is a complex mixture of surfactants and sequestrants. It may be diluted using 10 parts water to create a “ready to use” Bike Cleaner or used neat in chain baths.  Concentrated Bike Cleaner works by attracting dirt, surrounding it and making it easy to rinse away. Fenwick’s Concentrated Bike Cleaner 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, leaving a clean, contaminate free surface. The Concentrated Bike Cleaner is biodegradable and safe to use on anodising, carbon, plastics, rubber and painted surfaces.