The Shimano XTR SM-CRM95 is a top-tier direct mount chainring purpose-built for XTR M9100 series cranksets. Designed for 1x12-speed mountain bike drivetrains, the 38T variant offers a versatile gear range suited to XC, trail, and enduro riders who demand race-level precision and reliability across all terrain.

Highlights

  • Dynamic Chain Engagement+ (DCE+): Engineered tooth profile improves chain pick-up and retention, reducing the risk of drops on rough or technical terrain.
  • Shimano Direct Mount interface: Tool-free swaps with a clean, low-profile fit directly to the crank spider — no separate bolt hardware required.
  • Hyperglide+ compatible: Works seamlessly with Shimano 12-speed Hyperglide+ chains for smooth, consistent shifting under load.
  • Lightweight aluminium construction: Plated aluminium keeps weight low while maintaining durability across long-term trail use.
  • 1x-only design: Optimised exclusively for single-ring drivetrains — no compromises for multi-ring compatibility.
  • XTR pedigree: Part of Shimano's flagship M9100 groupset, trusted by XC World Cup racers and enduro athletes alike.

Technology

Shimano's Dynamic Chain Engagement+ technology uses a specially profiled tooth geometry that guides the chain more securely onto the ring, even when the drivetrain is under lateral stress from rough trail surfaces. This reduces chain drop risk and wear on both the ring and chain, extending the service life of the entire drivetrain.

Compatibility & Fit

The SM-CRM95 38T mounts directly to XTR FC-M9100 and FC-M9120 cranksets (1x variants). It is not compatible with FC-M9130 or FC-M9125 in the 38T size. A Shimano 12-speed Hyperglide+ compatible chain is required. This is a single chainring only and cannot be paired with a front derailleur or second ring.

Shimano offers a limited warranty covering defects in materials and workmanship. For warranty support, return the item to Tune Cycles.
  • Dynamic Chain Engagement+ tooth profile for superior chain retention on rough terrain
  • Shimano Direct Mount interface for simple, tool-free chainring installation
  • Compatible with Shimano 12-speed Hyperglide+ chains
  • Plated aluminium construction — lightweight and durable
  • Optimised for 1x12-speed XTR drivetrains
  • Fits FC-M9100 and FC-M9120 cranksets (38T)
  • XTR M9100 series — Shimano's flagship MTB groupset
Part NumberSM-CRM95 (ISMCRM95A8)
Tooth Count38T
Speed12-speed
Drivetrain1x (single chainring)
Mount TypeShimano Direct Mount
MaterialAluminium (plated)
Chain CompatibilityShimano 12-speed Hyperglide+
Compatible CranksetsFC-M9100, FC-M9120
GroupsetXTR M9100
ColourBlack
SKU SHM-ISMCRM95A8
Barcode # 4524667321040
Brand Shimano
Shipping Weight 0.3000kg
Shipping Cubic 0.001000000m3
Unit Of Measure each
Must be installed and serviced by qualified bicycle mechanic