RaceFace Narrow Wide Direct Mount CINCH Aluminum Chainring - for Shimano 12-Speed, requires Hyperglide+ compatible chain, 34t, BlackNarrow Wide Direct Mount CINCH Hyperglide+ Chainring Only compatible with Hyperglide + chains Designed for use with 12 speed Shimano drivetrains Narrow Wide tooth profiling ensures consistent chain retention Specifications: Direct Mount Type: Direct Mount CINCH Tooth Count: 34 Drivetrain Speeds: 12 Defined Color: Black Material: Aluminum Ring Position Type: Chain Retaining Single Ring Round or Oval: Round Chainline Hub Compatibility: 135 142 MTB Hubs