PARK TOOL CB-4 Bio Chain Brite giant Wide Trail (WT) sizes optimized

Wide Trail (WT) sizes optimized for 35mm inner rim width

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PARK TOOL CB-4 Bio Chain Brite giant Wide Trail (WT) sizes optimizedPark 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