How would longer chain stays affect the ride? Would the bike just flex a little more under a sprint? Also, why would you limit tire clearance to just a 35mm? What's lost by going with more clearance? I like the idea of a 29"/cross bike - but since I wouldn't have suspension I was going to look to a fat tire to handle the cush - something like a 2.35 (which I think is bigger than a 35mm). Ideally, I could easily swap between two sets of handlebars - a drop bar and a straight bar. Are there such things as "quick disconnects" for cables, i.e., some type of coupler system that allows you to easily take apart a cable?