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. Item Specifications: Direct Mount Type, Direct Mount Shimano, Tooth Count, 30, 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,.
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