Yup... I finally wised-up and measured the pedal-to-seat height on my 5200 and my ION, both were at about 37". That happens to be the absolute max height I can adjust the seat post (cap) on the 56 cm Domane, so yeah-me

After reading the following article, of the 3 methods I could do at home, I came-up with the same seat height calculation of approximately 37", so I think I'm pretty safe keeping this 56 cm bike:

http://www.bikeradar.com/fitness/art...t-right-14608/

Here's my new machine... in "boring black"



On an unrelated note, it seems like it's a lot "bouncier" on my rollers than my 5200. (Since it's snowing and well below freezing right now, all I can do is ride my rollers.) Even when riding as smooth as possible on the rollers on my 5200, there's a little bit of forward-and-back motion as the rear tire attempts to crawl over the rear roller and then rocks back. This small motion seems to be accentuated by the Domane's flexible seat mast. While I don't think I'll notice this at all in the "real world" (i.e., on a street), I'm inclined to think I might just keep my 5200 as a winter roller bike rather than sell it so my indoor training is a little smoother!