Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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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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