You have to wonder if making something like this street legal would be a good idea or not?
You'd have lighting to deal with, turn indicators.. hopefully there is some sort of tap for lighting... but maybe not. Then there are mirrors and then mixing enough premix to take you where you want to go, gearing would probably be pretty high for the street. I don't imagine fuel mileage would be so great.
ok forget everything I just said. What is the best radical bike like this that maybe already has lights? I know of the WR250F but what else ya got, 2 stroke or 4 stroke?