Originally Posted by
RoboMonkey
I think, as you already seem to know, one of the main things to consider is the original bike's geometry. If the bike already fits you, you can replace the tubes one or two at a time and maintain the original geometry. The other thing to consider is the condition of the parts you will be using. I would check to make sure the threads are all good and if you want a derailleur hanger make sure it is already there. That's about all you need to consider if you are just choosing a donor frame.
Oh, I came on here looking for info on bamboo frames. I really want to try and build one myself (although if someone dropped a Boo bike off at my place I would probably not build one.) Great advice on replacing one tube at a time... I was wondering how it would all work if measurements were off by a little. Maybe I'll try just the top tube first and then as I get more confident move around. I want to build a bamboo cross bike, so I could even leave the canti posts on and just replace the stays below the posts!
I am going to check back here often for further advice. I got myself all excited about a bamboo frame today!