Shimano Deore XT CN-M8100 – 12-Speed Bicycle Chain
The Shimano Deore XT CN-M8100 is a high-performance 12-speed bicycle chain designed for smooth, precise shifting, excellent chain retention and reliable durability.
Although part of Shimano's Deore XT mountain bike series, the CN-M8100 is also compatible with a wide range of Shimano 12-speed road and gravel drivetrains, including supported Dura-Ace, Ultegra, 105 and GRX configurations.
Featuring Shimano's HYPERGLIDE+ technology, the CN-M8100 delivers fast, smooth gear changes, even under pedaling load. Its extended inner link plates improve engagement with compatible chainrings, while the SIL-TEC surface treatment helps reduce friction and wear.
Key Features
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12-speed compatibility: Designed for compatible Shimano 12-speed road, gravel and mountain bike drivetrains.
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Versatile drivetrain compatibility: Works with supported Shimano Dura-Ace, Ultegra, 105, GRX, Deore XT and SLX systems.
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HYPERGLIDE+ technology: Promotes fast, smooth and precise shifting with compatible components.
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Extended inner link plates: Improve chain engagement and retention.
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SIL-TEC surface treatment: Helps reduce friction and improve durability.
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DYNAMIC CHAIN ENGAGEMENT+: Optimized chain retention when paired with compatible Shimano chainrings.
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QUICK-LINK connection: Uses the Shimano SM-CN910-12 quick link.
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Reliable construction: Designed for consistent performance across a variety of cycling disciplines.
Technical Specifications
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Brand: Shimano
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Series: Deore XT
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Model: CN-M8100
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Speeds: 12
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Technologies: HYPERGLIDE+, SIL-TEC
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Chain design: Extended inner link plates
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Chain connection: Shimano SM-CN910-12 QUICK-LINK
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Quick-Link reuse: Single-use
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Applications: Road, gravel and mountain biking with compatible drivetrains
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Chain length: Varies by manufacturer reference
Compatible Shimano Drivetrain Families
The CN-M8100 can be used with supported configurations from the following Shimano 12-speed groups:
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Road: Dura-Ace R9200, Ultegra R8100 and 105 R7100
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Gravel: Compatible GRX 12-speed systems, including applicable RX820, RX825 and RX610 configurations
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Mountain: Deore XT M8100 and SLX M7100
Compatibility depends on the complete drivetrain configuration, including the cassette, crankset and other components.
One Chain for Multiple Cycling Disciplines
Whether you're maintaining a road bike, gravel bike or mountain bike, the Shimano CN-M8100 offers reliable shifting performance for compatible 12-speed drivetrains.
Replacing a worn chain helps preserve drivetrain efficiency and reduce premature wear on the cassette and chainrings.
Compatibility and Installation
Before purchasing, confirm compatibility with your exact Shimano drivetrain and verify the required chain length. Follow Shimano's installation instructions and use an appropriate 12-speed QUICK-LINK. The SM-CN910-12 quick link is not reusable.
