Lighter, more stylish and advanced by the latest Dura-Ace technologies, the new Ultegra is a beautifully balanced group with optimal performance and specifications. For the Shimano Ultegra CN-6701 Chain, different inner and outer plate chambers and dimensions are combined to significantly improve the movement of the chain inward and outward on the drivechain. The result? Super smooth shifting and a quiet ride for you. Redesigned inner and outer plates New shaped outer plate improves chain release from outer ring to inner ring Enhanced press-in pin construction is durable and quiet New shaped inner plate for smoother rear shifting Weight: 272g (116 links)