Park Tool CB-4 Bio ChainBrite Bicycle Chain & Component Cleaning Fluid - 16 fl oz/472 ml Bottle

Good cleaner. Easy to use and takes grime off fast

This cleaner works really well with the Park Tool chain cleaner. I will buy again.

I use this with my Park Tool CB-2.4 Chaingang Cleaning System. The bottle that originally came with the CB-2.4 tool wasn't as large as this bottle, but it lasted 2.5 cleanings. This bottle lasts about 4 cleanings. It works well and doesn't stain the cement if it drips/splashes, but I typically lay an old towel on the floor when using this stuff. It's biodegradable so that's plus. It doesn't smell bad at all and is easy to use. Great product.

Having already used more than 100oz of this product, it still holds as the best friendliest de-greaser for bicycle drive train cleaning. Downside, wish my wallet was happier while working up those miles on the bicycle. Wish Park Tools provided a 120oz or so sized option at a more cost-efficient price point.

Works well, but expensive for what it is. Did a great job cleaning my chain.

My favotite liquid to clean my chain bike. makes this job easier - not easy.

This is a refill order after my first purchase of a starter kit. The cleaning device and cleaner fluid brought my chain back to spotlessly clean. Very happy.

Well, this stuff IS expensive. I find it very easy to use with the park tool chain cleaner. Rinses off fairly easily with water and advertised safe for the environment. Degreases very, very well. To offset the expense a little, I drain the used liquid through a coffee filter into a plastic container and let it sit until I’m ready for the next chain cleaning. During that time, the gunk has settled and the cleaner can be used again by carefully pouring off into a separate container.

The bike cleaner arrived very quickly. This cleaner with the Park chain cleaning tool does the job perfectly! I've tried other products - this is the best!

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.

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