The Shimano CN-M8100 12-Speed Chain delivers smooth, dependable shifting and outstanding durability for Shimano 12-speed drivetrains. Originally developed for the Deore XT M8100 groupset, it’s fully compatible with Shimano XTR, XT, SLX and Deore 12-speed systems, making it an excellent choice for MTB, gravel and adventure riders seeking reliable performance at exceptional value. Powered by HYPERGLIDE+ technology, the CN-M8100 allows fast, seamless shifts even under heavy pedalling loads, helping you maintain momentum on technical climbs and fast descents. 

The chain features Shimano’s extended inner plate design for improved chain retention and engagement with Dynamic Chain Engagement+ chainrings, while chromized pins and SIL-TEC surface treatment reduce friction and increase wear resistance in demanding riding conditions. Supplied with a genuine Shimano SM-CN910-12 Quick Link, installation is quick and tool-friendly. 

Expected Lifespan

The Shimano CN-M8100 is built to withstand demanding off-road riding while offering excellent value. Actual lifespan depends heavily on maintenance and riding conditions.

Typical service life is:

• 3,500–5,000 km with regular cleaning and lubrication
• 5,000–7,000 km when waxed or meticulously maintained in predominantly dry conditions
• 2,000–3,500 km in muddy, wet or abrasive environments

Replacing the chain at approximately 0.5% wear helps maximise cassette and chainring life, potentially saving hundreds of dollars in drivetrain replacement costs. Riders who monitor chain wear regularly can often double the lifespan of their cassette.

Features

• Genuine Shimano CN-M8100 12-speed chain
• HYPERGLIDE+ technology for smoother, faster shifting under load
• SIL-TEC low-friction surface treatment for improved durability
• Extended inner plate enhances chain retention
• Chromized roller link pins for increased wear resistance
• Includes genuine Shimano SM-CN910-12 Quick Link
• Compatible with Shimano XTR, XT, SLX and Deore 12-speed drivetrains
• Suitable for MTB, gravel and E-MTB applications
• Weight: approximately 252g (114 links) 

Compatibility

Compatible with Shimano 12-speed HG+ drivetrains, including:

• XTR M9100
• Deore XT M8100
• SLX M7100
• Deore M6100
• Compatible 12-speed Shimano E-MTB drivetrains