Yep the seat post motor with the camel back tank box or open van was what I had in mind, V frame, very realistic, but myself I'd opt for Pat's standard size loop frame, very cool look with a round crank case single seat post motor. The bottom straddle tube could be left in place and used for a fill in signage plate or just eliminated. V frame or loop very cool project Steve. 52v. is a good choice as well. Is your motor a direct drive or is it a planetary geared motor? "Squeeze a little more out of the motor". These motors though marked 48v. or 60v. etc. can all be over volted if the controller is matched to the amount of over-volt and increased amp. The motor just runs as instructed by controller and fed by the appropriate battery pack. Matching the components is important and there are limits to how far one takes this. Add voltage get more motor speed add amps, current, more power. Rick C.