I bought one.
I bought the Sunl 70cc for my son. It has a 70cc 4-stroke honda clone motor with an automatic trans. I am happy so far. I agree about the parts issue. I am trying to find a smaller front sprocket for it. I had a cop buddy clock me at 31 mph the other day, and I am 200 lbs heavier than my son. I would like to slow it down and give it more bottom.
It is alittle weak on the low end but real strong on the top.