Originally Posted by Holzwurst

Just joined here today, motivated by a very unusual and confusing experience. I have been searching carefully the past 3 months for a good used hybrid and thought I had a handle on sizes. I am 5'11" and understood that I needed a Large, or 19/20" bike. That was backed up by trying different models here and there. Well, today I chased a couple of new leads and ended up buying 2 bikes because I couldn't decide which to get. One is a Scott Metrix 40 fairly new, the other a Cannondale C400, early 2000's. Here's the twist. The Scott is a Medium and measures 19". The Cdale is a Large and measures 17". Should I be surprised by this?