Wolf Tooth 96BCD Asym Elliptical Chainring. Features: Fits asymmetrical 96mm BCD with built-in threaded standoffs Designed for Shimano XT M8000 1x or 2x cranksets Features Drop-Stop tooth design to prevent unwanted chain drop Elliptical shaped for better traction, especially with technical climbing, and faster acceleration Mount using the stock Shimano XT M8000 chainring bolts 49mm chainline Recommended for use with 10 or 11sp chain (10sp chain works on 9sp drivetrain) Made in the USA from 7075-T6 aluminum alloy 41g (30t) Specs: Ring Type:single (anti chain drop) Armx BCD:4x96mm (asym) Teeth:30t Color:black