Look at this!
We've just been testing the prototype Hycore self contained e-bike wheel on a bike.
"What is this?", you may well ask!
Well, it is a single speed wheel e-bike system that can be fitted to a bike. Inside the wheel is the electric motor and battery, just turn it on, start pedaling, and off you go! It also features a bluetooth app so you can turn it on and off using a smartphone, and also track your ride.
Look out for future updates.