Clean Drive 100/400 ml aerosol preparation for cleaning bicycle drives, derailleurs and cassettes - preparation for cleaning the bicycle drive and chain - the product instantly cleans the entire drive system (chain, derailleurs and cassettes) - is gentle on metals, plastics and seals. The preparation belongs to the biodegradable group. How to use 1. shake 2. spray the bicycle drivetrain, cassette, derailleurs - leave to react for 2 minutes 3. rinse under running water 4. We recommend lubricating the prepared chain with Expand chain oil for appropriate weather conditions.