Direct-mount chainrings simplify installation and remove the spider from the equation, which is where the weight savings and stiffness gains come from on high-end 1x drivetrains. The Shimano XTR SM-CRM96 chainring is the current top-tier ring in Shimano's mountain lineup, built specifically for XTR M9100 series cranksets and now the newer M9200/M9220 cranks, with a reinforced construction that handles the kind of rock strikes and case-outs that come with aggressive trail and enduro riding.

Chain retention comes from Shimano's Dynamic Chain Engagement tooth profile, which shapes each tooth to grip the chain more securely through rough sections where a standard narrow-wide ring might let the chain skip. Paired with a 12-speed Hyperglide+ chain, the engagement stays quiet and consistent even when you're hammering through chatter. The ring itself is direct-mount only, so it bolts straight to the crank spindle interface without needing a spider or chainring bolts.

Sizes run from 28T to 36T in two-tooth increments, giving you room to dial in gearing for your terrain. The 28T is worth calling out specifically for compact drivetrain builds — it pairs with the mid-cage XTR rear derailleur and 9-45T cassette for a lighter, tighter package than the full 10-51T setup, and it's a solid choice if you're building an XC or marathon bike where you want a wide range without the extra derailleur mass.... Read More