• The lack of a road BB30 arm is certainly odd- as Skinny says I would think that you could use the MTB one, although I'd check Q factor

    Well if you think about it...SRAM never made a rival crank in bb30...

    Actually... Maybe they did. Or maybe something similar but non-series. Hmmm weird.

    Mixing mtb / road is possible - may not even mean a wider Q factor, if like most bb30 cranks accounting for the extra girth required for mtb cranks is achieved via a longer axle and spacers.

    2nd dibs erroneous rival crank arm.

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