If you are looking to maximize the efficiency of your GXP Direct Mount compatible SRAM crank an Absolute Black Oval Chainring is the way to go. Absolute Black's patent-pending ovalized chainring design optimizes the "power zone" in your pedal stroke giving you the effect of a larger chainring where you want it and a smaller chainring when you don''t in the weaker part of the stroke.

Absolute Black Oval GXP BOOST Chainrings are compatible with 9/10/11-speed and 12-speed Eagle drivetrains and compatible chains. GXP BOOST Oval Chainrings have a 3mm offset and are designed to be used with 148mm BOOST spaced rear hubs. Absolute Black also recommends the BOOST Oval Chainring for SRAM fat bike cranks to help dial in the chainline.