CN-M8100 XT/Ultegra 12-Speed Chain 138 Links Calf Sleeves Wide-mouth opening for easy filling

Wide-mouth opening for easy filling and cleaning

SPD-SL integrates the shoe and pedal so they perform as a single ultra-efficient component

6mm Super Over Sized design

Bearings: Sealed

adjustable ErgoNose system

CN-M8100 XT/Ultegra 12-Speed Chain 138 Links Calf Sleeves Wide-mouth opening for easy fillingShimano XT Ultegra CN M8100 12 Speed Bicycle Chain: The Shimano Deore XT Ultegra CN M8100 12 speed chain is optimized for use with the Deore XT M8100 MTB and 12 Speed Ultegra drivetrain systems. HYPERGLIDE+ technology dedicated chain delivers greater chain retention, improved shifting efficiency, and smoother transmission over rough terrain Extended inner plate improves chain engagement Reduced shift times and pedaling shock