Has anyone done this? I have an old mtb frame that I'd like to use as a commuter, but it's chainstays are a lot wider than they need to be and I'm used to road bikes with more than an inch less width between the cranks. I'm not too worried about ideal chainline, I'd like to change the bb and probably use road cranks. From the looks of factory dents often on the drive side chainstays I'm thinking a diy job wouldn't weaken things too much, but I'm worried about things getting out of alignment. Thanks for any advice.