Thread: Crank shape?
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Old 07-11-12, 07:09 AM
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FBinNY 
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It might, but that's not the reason. Over the years crank sets and BB's have moved to progressively shorter spindles to improve stiffness. That moved the hub (spindle end) of the crank inboard. But the pedals had to stay roughly the same width apart to clear chainrings and chainstays, so you have today's curved arms.
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