Looking for ...

Hi
Im a die hard moterized bike fan.
I have a chain driven china bike with everything on it.

I have been riding around chicago and people very interested. almost to the point of wanting one .

I think i could start some sort of company here.


The question is , is there a web sight or company that offers friction drive engines for a decent price(150-250)
I have seen some for about 500 but no less.
Thanks