Dahon is arguably the company that brought folding bikes to the mainstream. Their high quality, ingenuity, and clever design have become well known. Now they are doing the same with folding eBikes. The K-One is unique among folding eBikes due to it's mid-drive motor. Mid-drive motors are generally considered superior over hub-drive systems due to their smoother power delivery and better weight balance. The Dahon K-One Mid-Drive uses a torque sensor instead of the cadence sensor commonly found on hub drive eBikes. Also, one of the mid-drive’s biggest advantages over a hub drive is that it can take advantage of your bike’s gears. Hub drives can't do that... the hub drive motor drives the wheel directly.
All of this means smoother power, a more natural feel, better balance, and more fun!