Thanks to its unique optimization treatment, CeramicSpeed's Ultrafast racing chain saves you watts and improves your performance with free speed and unparalleled reduced friction. Our Ultrafast racing chains are carefully selected from high-quality suppliers and hand-optimized in Denmark. This Ultrafast chain has been optimized for compatibility with 11-speed KMC drivetrains, to increase the efficiency of the entire drivetrain. CeramicSpeed UFO racing chains can save you between 2 and 5 watts over a distance of 650 km/400 miles. Apply CeramicSpeed UFO Drip after 650 km to maintain maximum chain optimization for its entire lifespan. Please note that the UFO treatment is not optimized for wet and muddy conditions; read more about this in the maintenance tab. In the package: 116-link optimized chain Quick Link sticker Single-use UFO Drip sample