NEW Park Tool CB-4 Bio Chain Brite inventory-apparel-shorts The K40 is a reliable

The K40 is a reliable tire for recreational use

Double-sided TwinHead® fits all valve types and its heavy duty construction will provide years of service

Weight: 404

- High volume casing enables comfortable ride

NEW Park Tool CB-4 Bio Chain Brite inventory-apparel-shorts The K40 is a reliablePark 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