I feel like I need to clarify a couple of things on that post. I am only referring to small vehicle applications, like scooters, go-karts, and electric lawn mowers. I have a 1/3 HP motor and a capable inverter, I also have a 1/2 HP motor, but these motors are huge compared to some of my plane motors. For $70 I can get a 48V, 60A motor, that's 2,880 watts or 3.86HP. Why oh why do I see instructionals for electric moped conversions and those big DC motors, or those 1800 RPM single phase motors that weight close to 30 lbs? I am thinking there must be a legitimate reason, but the RPM differences really aren't that bad; it's usually a single chain or belt reduction to the drive wheels in all cases. Some of these RC motors can even be found as low as 7000 RPM. Now a high voltage system, that makes sense. To me though, I just can't find the reason for big motors and inverters for 24V and 48V scooters.