Bottle of Park Tool CB-4 Bio ChainBrite, click to enlarge
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Item # CB-4

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Bio ChainBrite™

Bio ChainBrite™ Bicycle Chain and Component Cleaning Fluid 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 as a general purpose degreaser. Will not harm alloy, plastic, rubber, or carbon fiber parts.

Use CB-4 full strength, do not dilute with water. Cover parts in solvent and scrub using a brush.

16 oz. bottle

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CB-4 Bio Chainbrite®