I had posted about a go-kart project a while back but that didnt work out. I want to buy one of those Schwinn Stingray bikes and motorize it. I just need a few suggestions. I was thinking about getting either one of these kits http://www.kingsmotorbikes.com/Engine_Kit1.htm except Ive seen them much cheaper on ebay. Or I would use a HF blue engine. I would have to buy more if I didnt get the kit but I would probobally get better performance. What would you guys recommend?

