There's also the power factor. These hidden motors are on the order of a few hundred watts. While enough to make a huge difference, if you want a non-hidden ver

There's also the power factor. These hidden motors are on the order of a few hundred watts. While enough to make a huge difference, if you want a non-hidden version, you can get a few hundred watts for a few hundred bucks: https://www.electricbike.com/12-kit-power-levels-360w-to-8000w/ https://www.electricbike.com/12-kit-power-levels-360w-to-800... to well into the thousands of watts range for $2500. The price is because it's stealthy.