So I'm a newbie and want to make a motorized bike so I've been looking around for kits. I know I want a 2 stroke for a fact but I don't want a low quality engine. I'm want to know which engine is the best one to buy. Is the ZEDA engine a also chinese engine? Also would the GT90 performance kit be interchangeable with the other chinese engines? Please help me out. Also is a 66/80cc engine 66cc or 80cc?