Thanks for the advice, everyone; it is invaluable. The C-Dales look like they might be a good fit for our needs. However, I looked at the sizes online, and it looks like they come in a L/S or a Jumbo/Medium. I'm thinking we would either need a L/M or a Jumbo/L, but I'll try to find some to test ride. FYI, my wife usually rides a 59 or 61 frame, and I usually ride a 56.