either or, I will probably look for a wrecked bike so i will take whatever 650 I can find. I may just buy a motor if I can find a decent deal and use my ex 500 frame so I have a titled bike and just build a frame around the motor. I built a 500 based cafe/streetfighter and now I have the old frame sitting around. I considered just getting another 500 motor since they're so cheap and plentiful and doing something similar to the webber bikes. the extra power and FI would be nice though