Originally Posted by bostontrevor
Awesome, do it.
I think the only "problem" it will solve is the small amount of power lost to flex on on the NDS BB shell and through the BB spindle. Not much. You will increase friction, weight, and probably issues with chainring concentricity.
But then I don't think you're trying to solve anything, right? Really trip people out and run two different but equivalent ratios.
That would be great.
If someone notices the two different sets of gearing, just say "The right side is for uphill, the left side is for downhill "
