Park Tool CB-4 Bio Chain Brite
- Bio Chain Brite Bicycle Chain and Component Cleaning Fluid is a 100% biodegradable, natural, plant-based degreaser formulated for use in the CM-5.2 Cyclone Chain Scrubber.
- Use CB-4 full strength, do not dilute with water. Cover parts in solvent and scrub using a brush
- Won't harm alloy, plastic or rubber parts