The special design of the new Shimano XT CN-M8100 12-speed chain ensures improved shifting performance and smoother running - even in rough terrain. The SM-CN910-12 Quick-Link closure, which is also new, makes installation easy. Features New Drive System Dedicated Design Chain Greater chain retention to extend the portion on the end of inner plate to firmly hold the tooth both front and cassette sprocket Enhancements to shifting performance Easy connect Smoother driving even over bumpy terrain Compatible with new generation of drive train Quick-Link (SM-CN910-12) Quick-Link connecting & removing pliers (TL-CN10) - Not included! Product features Use: MTB, Road, Gravel, Trekking, E-Bike Group: XT M8100, ULTEGRA R8100 Model: CN-M8100 Gear front: 1/2-speed Gear rear: 12-speed Type: HG Hollow Pin: No Pin Link Plate: SIL-TEC Roller Link Plate: Chromizing Roller: SIL-TEC Connector: Quick-Link SM-CN910-12 Attributes Links 138 Chain Weight 252g Link Type Missing Link Primary Color Grey Speed 12 e-Bike approved Yes