I've got a friend trying to find a home for a 61" Trek 1200. I'm 5' 10". I'm thinking that would be more uncomfortable than it would be useful. Any insight here? Would it still be worth taking for a test ride?
Go ahead and give it a spin since bike frames are, to say the least, not standard due to differences in geometries. I'm 6'3" and have found that I fit comfortably on 56cm, 60cm, 55cm, 61cm, and 59cm frames some by the same manufacturers. You'll know it's too big the second you try to straddle the top tube.