Interesting to read sheldon about the low profile cranks. If I'm understanding him I guess I'd have to disagree, since there doesn't seem to be much standardization of frame dimensions along chainstay widths. I've often had problems with chainring to frame clearance when trying to minimize q, but not often with crank arm to frame clearance. With the low profile crank design, and the outward bend to the cranks, (more space between the outer chainring and arm) you can often bring the chainrings closer with a narrower bb spindle, but the arms will still be out well away from the frame. With an older straighter armed crank and the right spindle length, you can often get much narrower, but then the issue of front derailer compatibility may come up. Crank and frame and front derailer makers must collaborate on these measurements, I wish they would show them more clearly. If I were looking for a new bike, q measurements and possibilities with compatible and hopefully modern parts would be a big plus.