Park Tool - CB-4 Bio ChainBrite Stock Item:Park Tool Bio ChainBrite Cleaner: 16 oz. (474 mL) 85mm spacer is required for

85mm spacer is required for 11-speed drivers

Sealant will not freeze

User replaceable lithium AAA battery

OD bottom bracket comes with telescoping center sleeve for added durability

Mobile tool bag with user-friendly telescopic handle

Park Tool - CB-4 Bio ChainBrite Stock Item:Park Tool Bio ChainBrite Cleaner: 16 oz. (474 mL) 85mm spacer is required forPARK TOOL CB 4 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. 2 Cyclone Chain Scrubber or as a general purpose degreaser. Won't harm alloy, plastic, or rubber parts. Use CB 4 full strength, do not dilute with water. Cover parts in solvent and scrub using a brush. 16 oz. bottle.