Thinking about going 2x9 with a 44 and 32, 30, etc chain ring combo. It looks like a Middleburn is a decent option, and can be purchased for under $300.
The only concern here is the bottom brackets required are either an Isis or square taper. Are these good options compared to a bb30 FSA Afterbuner? Is bb30 or bottom bracket selection more important than gear options and weight on a crankset?
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: Middleburn crankset