Fully compatible with the entire Eagle lineup SX cranksets bring Eagle performace to all budget levels Available in DUB and Powerspline bottom bracket configurations as well as boost and non-boost spacing for increased entry level replacement options Utilizes the same Steel Eagle direct mount chainrings as found on the NX level Eagle cranks Can also be used with the NX 1x11 drivetrain, Sram 11sp chain highly recommended for this application Boost Compatible 170x32 PowerSpline BLK Direct Mount 1x11/12