When it comes time to sell my 2007 RM-Z450 I might do this just for kicks. Sell off the motor, get an RM250 motor and have it stuck in there. Would be cool! Not like I could sell the complete 450 for anything anyway....
Put the Quadzilla 500 motor in it Pit. How bad@$$ would that be? Then when I get my KX500AF done we can start our own class!
Actually, not sure I'd ever race it depending on how it handled, etc., but I do plan to convert my '07 into one for my annual dune trip and trail riding.
I know I've been talking about it for a long time, but it will happen....maybe?
Have to wait until a get a newer 450 first. Maybe we can get Robin to put a big bore KTM smoker in one of his frames?.....
Anywho, I've seen them put a KX250 two stroke motor in a KX250F frame before. Thinking MPS did it? It's all in the eye of the beholder...and the bank account.