Designed for Race Face CINCH cranks with removable spiders. Its proprietary design has an ovality of 10% and a timing of 112 degrees after top dead center which provide the beneifits of an oval ring such as greater rear wheel traction without the traditional downsides of oval rings. This chainring features the patent pending asymmetrical Drop-Stop tooth design for the best in wear life, mud clearance, and chain retention.49mm chainline / 6mm offset for standard spacingElliptical chainring shape provides better efficiency in the recovery zone, as well as increased traction thanks to consistent torqueFeatures Wolf Tooth's Drop-Stop tooth design for maximum chain retentionOptimized for use with 10, 11, and 12 speed chainsNot compatible with 9 speed chainsItem SpecificationsChainline/Hub Compatibility135/142 MTB HubsChainline/Hub Compatibility150/157 DH HubsChainline/Hub Compatibility157 Super Boost HubsChainline/Hub Compatibility170/177 HubsChainline/Hub Compatibility190/197 HubsDefined ColorBlackDirect Mount TypeDirect Mount CINCHDrivetrain Speeds10Drivetrain Speeds11Drivetrain Speeds12MaterialAluminumOffset6Ring Position/TypeChain Retaining Single RingRound or OvalOvalTooth Count34