Robbie,
Thank you! I mean, between 60-75 miles in one sitting, and my lower back started to hurt a little. I can only assume that it was due to being hunched over for hours at a time.
I wish the Cilo was a tad bigger....Thats part of the reason it's sat in the basement for the past 2 years untouched. My Fiancee didn't like downtube shifters, so I got her a modern bike with brifters, which she loves. The Cilo collects dust
I think I'll get rid of the Schwinn, as it's just really way too big.
Going to have to take the Trek to the store and get fitted properly I think...
Very good explanation/advice!