I would echo the previous responses on the Surlys. They make XXL framesets and most can be built up and configured for different riding styles, preferences and purposes. Also, one recommendation that I have is to either buy a set of wheels or have a set of wheels built that have at least 36 spokes. I'm not as much of a clyde anymore since I've dropped over 40 lbs but all my bikes have wheels with 36 spokes. I would recommend Shimano Deore or XT hubs laced up to some solid double wall rims.