Optimise the performance of your drivetrain with the Shimano XTR CN-M9100 12-speed chain (138 links), designed for modern MTB drivetrains and compatible with Shimano 12-speed rear derailleur systems. This top-of-the-range chain features HYPERGLIDE+ technology and SIL-TEC surface treatment, two technologies from Shimano designed to improve pedalling smoothness, gear-changing precision and the durability of the drivetrain.

Its directional design and extended inner plates help keep the chain securely on the teeth of the chainring and cassette, a particularly valuable advantage in mountain biking when the terrain becomes rough. ‘ Shimano ’ thus indicates improved chain retention and smoother power transfer, even under demanding conditions.

A 12-speed MTB chain designed for performance

The CN-M9100 is part of Shimano ’s XTR range and is aimed at cyclists seeking a precise, quiet and high-performance drivetrain. Its design, featuring SIL-TEC-treated outer plates, chrome-plated inner plates and hollow pins, helps to reduce friction whilst maintaining excellent durability.

HYPERGLIDE+ technology ensures fast and smooth gear changes, even whilst pedalling. It is particularly well-suited to Shimano ’s 12-speed drivetrains, where precise indexing and the quality of contact between the chain, cassette and chainring are essential.

Compatible with MTBs and eBikes

The Shimano XTR CN-M9100 is officially listed as compatible with eBike rear derailleur systems. It is therefore an attractive option for electric mountain bikes fitted with a compatible 12-speed Shimano drivetrain.

Whether on a conventional mountain bike or an e-bike, choosing a chain suited to the drivetrain is essential: a worn or incompatible chain can impair gear changes and accelerate wear on the cassette and chainring.

SIL-TEC treatment: smooth shifting and durability

The SIL-TEC treatment is a low-friction, Shimano -based surface treatment. It is applied in particular to the components of the CN-M9100 chain to improve its performance and long-term durability. Shimano presents this technology as a treatment that goes beyond a simple coating, designed to enhance the performance and longevity of the components.

QUICK-LINK included

The CN-M9100 uses the Shimano QUICK-LINK SM-CN910-12 connection system, allowing for convenient chain assembly. Shimano states that this connecting link is designed for quick fitting and is not reusable: when dismantling the chain, it is recommended to use a new QUICK-LINK.

The XTR CN-M9100 Shimano stands out above all for its balance between precise gear changes, low friction, chain retention and build quality. For a high-end mountain bike, it is particularly well-suited to a 12-speed XTR drivetrain and allows you to take full advantage of the HYPERGLIDE+ system.

It also offers real benefits on a compatible 12-speed e-bike, where the chain is subjected to significant stress. The SIL-TEC treatment and the CN-M9100’s specific design make it a premium choice for riders who prioritise reliability and drivetrain performance.

Expert tip: when replacing a chain, also check the condition of the cassette and chainring. Fitting a new chain to a heavily worn drivetrain can cause the chain to skip and rapidly reduce the lifespan of the new component. To maintain the performance of the CN-M9100, clean the drivetrain regularly and use a lubricant suited to your riding conditions.

Technical specifications

• Brand: Shimano
• Range: XTR
• Model: CN-M9100
• Product code: ICNM9100138Q
• Type: HG 12-speed chain
• Number of links: 138
• Technology: HYPERGLIDE+
• Treatment: SIL-TEC
• Design: directional
• Pins: hollow pins with chrome-plated finish
• Outer plates: SIL-TEC coating
• Inner plates: chrome-plated
• Connection: QUICK-LINK SM-CN910-12
• Use: MTB / e-MTB, compatible with 12-speed systems
• e-bike compatibility: yes, with compatible Shimano s
• Drivetrain: 12-speed Shimano, HYPERGLIDE+ compatible