CB-4 Bio Chain Brite disc brake hose parts the G27 is designed for

the G27 is designed for the higher volume tires demanded by many riders on rougher and looser terrain

This effect of putting far less strain on your back has been awarded with the seal of quality of "Campaign for Healthier Backs"

Built with the 350 Hybrid LS hub for enhanced reliability and contained weight

lateral stiffness and longevity are both improved

The XRC 310 carbon rim allows riders to break records

CB-4 Bio Chain Brite disc brake hose parts the G27 is designed forPark 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