Originally Posted by Tad Bit Tipsy
I think the problem here is not what engine, but where to put one. I have ridden one of these and the frame doesn't have enough room to fit an engine in it. Therefore I would go with a rear mounted 4-stroke from Dax and then just upgrade your rear spoke to a higher tooth. Stick with a multi-speed pedal drive, so you can pedal from corner to corner, then fire the puppy(engine) up when you need to move across town. 2 cents, L8R.
I agree. The 4 stroke would be more dependable. The new 4-G belt drive comes in rear mount also. And much quieter