The Copenhagen Wheel is in the final prototyping phase and will go on sale in about 12 months. The cost is targeted for about $600 which is slightly lower than a decent lithium e-bike kit.
The advantage of the Copenhagen Wheel is that there are no “messy” wires to deal with. All of the electronics are housed inside the wheel and controlled wirelessly via smartphone. A torque sensor measures the pedal effort and assists the rider when needed.
New details include: