I was thinking about getting either the 2 stroke 70cc kit from fiveflagsmotorbikes.com or Kings Motor Bikes,Motorized Bicycle,Bicycle Engine Kit,Bicycle motors,Whizzer motorized bicycle but I have a question. What bike is best to buy for mounting it. I looked a schwinn, either single speed or 7 speed, with 26" wheels. Is that a good one and what should I know (and keep in mind) while buying a bike? I'm new at this, so any advice would be great.