CeramicSpeed UFO Chain - Optimized KMC 11-Speed Compatibility 116 Links SilverDue to its unique optimisation treatment, CeramicSpeeds Ultrafast Racing Chain saves you watts and improves your performance with free speed and unparalleled low friction Ultrafast racing chains are carefully selected from high quality suppliers and optimised by hand in Denmark CeramicSpeed UFO Racing Chains can save you between 25 watts on a distance of 650 km 400 miles Apply CeramicSpeed UFO Drip after 650km to maintain your peak chain optimization