.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; height: auto; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }This chainring's tooth profile was developed specifically for Shimano's XTR, XT, and SLX 12-speed Hyperglide+ chain.Compatible only with Hyperglide+ 12-speed chainFor use with Wolf Tooth CAMO spiders (not compatible with any other chainring mountings)Elliptical rings provide smoother, more efficient pedal rotation, which means better tractionMaintains quiet and smooth performance of the Hyperglide+ drivetrain with exceptional chain retentionPrevents premature ring and chain wear that can come from non-optimized profilesItem SpecificationsDefined ColorBlackDirect Mount TypeWolf Tooth CAMO Drivetrain Speeds12MaterialAluminumRound or OvalOvalTooth Count32 Wolf Tooth CAMO Aluminum Elliptical Hyperglide+ Chainrings Direct Mount Chainrings UPC: 810006800623