Wolf Tooth Elliptical Direct Mount Chainring - 32t Shimano Direct Mount Drop Stop B Boost 3mm Offset BLKWolf Tooth elliptical chainrings designed for Shimano direct mount cranksets. This chainring is crafted with premium 7075 T6 aluminum and features the patented Drop Stop design for the best wear life chain retention and mud clearance. Elliptical chainring shape provides better efficiency in the recovery zone as well as increased traction thanks to consistent torque Designed for use with Shimano MTB cranksets such as XTR M9100 XT M8100 and SLX M7100