Our premium 1X Sram Direct mount Oval GXP® compatible chainrings are designed for GXP® and Long BB30 spindle cranks. Fits Sram XX1 X01 and others. Also replaces 76bcd chainrings to convert to direct mount solution.CNC machined 7075 Txxx Aluminum. Long-lasting construction.Great traction at the fraction of the price ! Narrow Wide tooth profile.Compatibility….SRAM XX1 X01 X0 X9 X7 S2210 S1400 and Truvativ AKA cranks. GXP® and Long spindle BB30 models (15mm spacer on drive side). Compatible with Boost148 as well.