Park Tool CB-4 Bio Chain Brite 16 Ounce Bottle

Cleans the chain efficiently

Good cleaner. Easy to use and takes grime off fast

Initially had problems with the order, retailer took responsibility and provided solution promptly. In term of the product can't fault Park Tool quality. Has a nice smell to it too.

Park Tool CB-4 Bio Chainbrite Bicycle Chain & Component Cleaning Fluid Overview: Park Tool CB-4 Bio Chainbrite is a biodegradable, plant-based cleaning fluid designed specifically for cleaning bicycle chains, drivetrains, and components. It is safe to use on all types of bicycle chains and drivetrain materials, including carbon fibre, aluminum, steel, and plastic. CB-4 is also safe for use on e-bike drivetrains and will not harm electronic components when applied as directed. Key Features: * Biodegradable & Plant-Based: Environmentally friendly formula that breaks down naturally. * Effective Cleaning: Cuts through grease, grime, and old lubricant on chains, derailleurs, and cassettes. * Safe for All Materials: Will not harm rubber, plastic, metal, or carbon fibre parts. * Versatile Use: Can be used as a general degreaser or in conjunction with chain cleaning devices, such as the Park Tool CM-5.3 Cyclone Chain Scrubber. * Water Soluble: Rinses off easily with water, leaving no residue. How to Use: 1. Apply CB-4 directly to your bicycle chain and drivetrain parts. For best practice, wear gloves to protect your skin, and avoid contact with eyes. If splashed, rinse thoroughly with clean water. 2. For optimal results, use a brush or a chain cleaning device. 3. Let the fluid work for a few minutes to break down grime. 4. Rinse thoroughly with water. 5. Allow parts to dry before re-lubricating the chain.

Good product , used to clean my bike chain , excellent results .