Anyone have experience with bikes for a very short woman? My wife wants to go riding with me but we can't find a bike small enough (she's 4'11"). When we were in college she rode a Raleigh twenty folder from the 1970s, but it eventually fell apart, and it had crappy brakes when it was working. The new Dahons are a bit too long in the reach. Any suggestions? I've thought of getting a kids' 24" road bike and putting flat bars on it, but that might stretch the budget too far (unless I can find a used one).