SRAM's 11-speed X01 drivetrain is the first group to benefit from the trickle down effect from XX1
Perhaps the biggest change from the information previously reported is that the X01 crankarms will indeed be offered in carbon. The hollow forged aluminum X1 cranks shown before will be on OE builds only, and are not available to consumers who aren't purchasing a complete bike. Both versions of the X01 arms use a 94mm BCD, unlike XX1 which use 74mm. This makes the smallest X01 chainring possible a 30-tooth.
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