Who wants to test this?

[Geebee]

Powered 26" front wheel, complete wheel including battery and controller.
312.39 gbp and 5.50 shipping

http://www.banggood.com/IMortor-26-inch-MT1_9-3-In-1-Intelligence-Bicycle-Wheel-Permanent-Magnet-Brushless-DC-Motor-Battery-p-1113106.html?rmmds=newArrivals

 

[Deleted member 4366]

Looks pretty good. Cheaper than many batteries. It's a bit short on battery capacity at 240wh, but they provide a bag to carry a spare, so presumably you can buy a spare to give a more useful 480wh for probably less than £500.

I'd love to know what the 27 yard gallop experience is. It sounds like fun!

 

[Zack @ Byocycles]

Annoyingly, this could be made so much better with a simple bluetooth module to get rid of the cables!