- Better chain engagement for greater chain retention - Special gear teeth profile designed for MTB riding usage - Smoother driving even over bumpy terrain - For XTR FC-M9100-1, M9120-1 cranks

The Shimano Deore XT SM-CRM85 chainring is designed for use with Shimano's M8100 and M8130 1x cranksets. - Special MTB gear tooth profile with Dynamic Chain Engagement+ improves chain engagement and retention - Direct Mount Type: Direct Mount Shimano - Tooth Count: 28T, 30T, 36T - Drivetrain Speeds: 12 - Defined Color: Black - Ring Position/Type: Chain-Retaining Single Ring - Round or Oval: Round - Chainline/Hub Compatibility: 141/148 Boost Hubs , 157 Super Boost Hubs

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition.

Shimano chainrings offer durability and confidence-inspiring performance, and go a long way towards getting a drivetrain back to optimum working condition. - For use with 38t AM-type outer ring

Shimano Ultegra R8000 Series Chainrings are designed for use with Shimano's 11-speed Ultegra crankset.