CopperCyclist
Veteran
Ah - you may however have to drive to the limit, and may be able to be summonsed for breaking them! That's on the presumption that your username means you ride an electric assist bike. (If you are just an electrician, or a modern day cybernetic human, I withdraw this claim!).Going back to cycling, I'd only worry about breaking a speed limit if it was a built up area or within a 20mph school zone.
I can find no stated cases on this, so this is mostly just theorising on my part, (and Id be interested to know if @Cubist @Drago @VikeOnABike would agree with the below logic) however:
An electric bike has a small electric engine, and as such can be easily defined as a mechanically propelled vehicle.
A motor vehicle is 'any mechanically propelled vehicle intended or adapted for use on the road'.
I suspect most e-bikes are intended for use on, rather than off road. Even if this wasn't the case, if you add lights to it to help you be seen by cars, this would constitute adapting it for use on road.
It therefore follows that an e-bike is a motor vehicle and as such must obey speed limits - the fact that most give no assistance above 15mph is neither here nor there legislation-wise!
Back in the real world, if you actually manage to find an officer who will try this, you've been very, very unlucky!