Hey everyone, I'm back again planning to do a another frame swap. A while ago I put a 79' rm 125 engine in a 07' frame and it came out perfect. Now what I'm looking to is take a 1990 RM 250 that maybe I can get for $500 and turn it into a 2009 RM250AF bike. Any suggestions? Maybe use the RMZ450 frame rather than the RMZ250? I forgot to mention that the 1990 is a complete running bike, that is pretty cheap. Let me know what you guys think this time around.