This Wolf Tooth elliptical chainring's tooth profile was developed specifically for RaceFace CINCH Boost Cranks with use of a Shimano 12-speed Hyperglide+ chain.Elliptical chainring shape provides better efficiency in the recovery zone, as well as increased traction thanks to consistent torqueCompatible only with Shimano Hyperglide+ 12-speed chainsFor use with any RaceFace CINCH boost crankset with 3mm offsetMaintains quiet and smooth performance of the Hyperglide+ drivetrain with exceptional chain retentionPrevents premature ring and chain wear that can come from non-optimized profilesFeatures Wolf Tooth s patented Drop-Stop wide/narrow tooth profile for the ultimate chain retention and mud shedding abilityMade from 7075-T6 aluminum for long lifeItem SpecificationsDefined ColorBlackDirect Mount TypeDirect Mount CINCHDrivetrain Speeds12keyword searchHyperglide PlusMaterialAluminumOffset3Round or OvalOvalTooth Count34 Wolf Tooth Elliptical RaceFace CINCH Hyperglide+ Direct Mount Mountain Chainrings Direct Mount Chainrings UPC: 810006801903