One of the reasons, a big reason, for using a motor on your bike involves clouds of burnt gasoline. Waiting at a stop sign or a red light is the safe thing to do, we all know that. However, when the light turns green and all the cars hit the gas, you get blasted with a face full of burnt gasoline. An electric motor allows you to out accelerate the cars and avoid this nasty toxic cloud.
For all you DIY Engineers, the soon to be released catalog of all things Robobike will be available soon. Look for material equivalencies, bending, torsion and section moduli and the finer points of center-of-gravity control.
Watch this page for developments.