AB premium Sram Gxp compatible Direct mount 1X Oval traction chainrings are designed for gxp and Long BB30 spindle cranks. Also replaces 76bcd chainrings to convert to direct mount solution. 6mm offset. Fits : SRAM XX1, XX1 Eagle, X01, X01 Eagle, X1-1400, GX-1400, X0, X9, X7, S2210, S1400 and Truvativ Descendant cranks. GXP and Long spindle BB30 models (15mm spacer on drive side) 9, 10, 11 and 12spd Eagle compatible.