the pitpro may run a similar frame im not sure but from the pics it doesnt appear that it would foul on the frame unless you are running the suspension through the stroke. trick looking bike though:D
I'm looking to put a 110cc motor in a late 90's qr50 but it needs a chain drive to the rear wheel. i was just pondering if this was possible to maybe use an xr50/crf50 rear end?