Park Tool Bio Chainbrite CB-4 474ML Price Group:Price_S Alloy barrel and handle

Alloy barrel and handle

Remember your first bike

and T25 Torx-compatible driver

- Weight-675g

rail trails and forest single tracks

Park Tool Bio Chainbrite CB-4 474ML Price Group:Price_S Alloy barrel and handlePark Tool CB 4 is a 100% biodegradable, natural, plant based degreaser formulated for use in the CM 5. 3 Cyclone Chain Scrubber, CM 25 Professional Chain Scrubber, or with a scrubbing brush as a general purpose degreaser. When used with a chain cleaner, CB 4 gets bicycle chains clean inside and out so they're good as new. Will not harm alloy, plastic, rubber, or carbon fiber parts, so it's safe to use for cleaning cassettes, chainrings, pulleys, or