- A chain cleaner based on plant-based raw materials - Designed for cleaning and degreasing chains, cassettes, and chainrings - Undiluted, the Bio Drivetrain Cleaner is a powerful degreaser and may affect the paint layer of your bike. Ensure that the painted parts are thoroughly rinsed with water after use - Works best with the BTL-17 brush or the BTL-21 chain cleaning device - Can be used undiluted or diluted with water - Made from 100% plant-based ingredients - 100% biodegradable within 28 days - 100% CO2-neutral production facility - 100% recycled PET packaging - 100% free from microplastics - 100% free from fossil raw materials