- 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 your bike's paint finish. Ensure that 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. - 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.