Hi Joseph, I had actually considered a Lifan 250 , BUT, to do that I would mount 18"x3" mortorcycle wheels and tires, and continue thru my bike to get it all together. The real pain is, that the Lifan is illegal here in CA, and it added just that much bigger challengs, to an already complicated build.
With the Lifan, it would be a real Motorcycle, and that also raises the bar.
Mike