Our oval chainring features our highly sought after tooth profile for the best 1x drivetrain performance. Combine this chainring with a modern day clutch derailleur and never worry about dropping a chain again. Made specifically for use with Shimano XT M8000 Cranks. An oval chainring will provide a significantly more constant torque to the rear wheel. Thereby increasing traction and reducing stalls/spinouts while climbing. Narrow/Wide oval chainring, CNC'd out of 7075 T-6 aluminum for durability Cut from 0.313 thick aluminum plate for lightweight and strength Features an Ovality of 12-13% with a Timing of 115 after TDC Top Dead Center Designed specifically for use with Shimano XT M8000 Cranks For use with 9, 10, 11, or 12 speed drivetrains