Thanks so much for your insight. I'm glad to hear that the 23 is a good fit for longer distances, as that is primarily the type of riding that I do. I've heard that running a 25 tire on them, provides an even better ride...so that is also something I'm considering.

Not sure on the demo'ing part, though. Although, the bike dealer that I'm working with on the Seven, is an official HED dealer so perhaps they can work something out for me to try them first. I'll find out on Saturday at my fitting.

Thanks again!

Linda