Shimano Deore XT SM-CRM85 34T Direct-Mount Chainring — 1x12-Speed, Narrow-Wide, M8100/M8130 Boost, Black, MTB

Shimano Deore XT SM-CRM85 is a genuine direct-mount 1x chainring for 12-speed XT M8100-series drivetrains. This is the 34T version in black.

Genuine Shimano Deore XT — brand new.

Will it fit? A direct-mount chainring for Shimano 1x cranks that accept SM-CRM direct-mount rings — FC-M8100 / FC-M8120 / FC-M8130 (Deore XT). The narrow-wide tooth profile (Shimano Dynamic Chain Engagement+) is optimized for 12-speed Hyperglide+ chains. Chainline is set by your crank (Boost / non-Boost). Crank arm is not included.

Key Specifications

Technology Highlights

• ✓ Direct-mount 1x design — swap chainrings while the crank stays a common component.
• ✓ Narrow-wide teeth — Shimano Dynamic Chain Engagement+ for superior chain retention.
• ✓ 12-speed optimized — tuned for Shimano Hyperglide+ 12-speed chains.
• ✓ Genuine Deore XT — durable alloy construction, brand new in retail packaging.

What's in the Box

• 1 × Shimano Deore XT SM-CRM85 34T direct-mount chainring (with lockring as supplied)
• Note: crank arm / crankset is not included