The CeramicSpeed UFO Factory Chain is a race-ready 12-speed chain engineered for maximum efficiency and watt savings. Designed specifically for Shimano drivetrains, this ultrafast chain undergoes a proprietary optimization process in Denmark to deliver exceptionally low friction and free speed gains. Riders can expect to save between 2 to 5 watts over 650 kilometers of use before reapplying UFO Drip to maintain peak performance. Each chain comes with a Quick Link, a UFO Drip All Conditions sample, and a CeramicSpeed decal. While optimized for dry conditions, its not recommended for wet or muddy environments due to the potential for corrosion. The CeramicSpeed UFO Factory Chain is one of the smoothest and fastest that has ever been made.