Originally Posted by CHenry

Makes sense, but many 650B applications are after-market. Also, there is the issue of cost and size. Not everyone wants to sink the amount of money a new purpose-built 650B frameset will cost (although to their credit Kogswell, Bleriot and Rawland are doing a pretty good job of narrowing the price difference with Surly.) With a 26 to 650B, there is the possibility of switching back and forth, depending on the rider or even the planned use. For a daily rider, 650B could be fun; for a serious tour, 26 in might be the better choice. Why not have a choice? I know how custom builders can go on about the frame being fit to the wheel, but where is still room for flexibility, shouldn't one take advantage of that?