Chainring Raceface RaceFace Narrow Wide Direct Mount CINCH Aluminum Chainring - for Shimano 12-Speed, requires Hyperglide+ compatible chain, 30t, B part name: Chainringpart make model: RacefaceRaceFace Narrow Wide Direct Mount CINCH Aluminum Chainring - for Shimano 12-Speed, requires Hyperglide+ compatible chain, 30t, Bbike part approved: