there's already several fairly refined e-bikes around, look at the offerings by Haibike for example, only a few models are available in North America, but in Europe there is a very large selection
this said anecdotally I am seeing more and more people on e-bikes here in North America too, bike commuting every day these days at least a few times a week I get passed by somebody riding one of them, did not happen at all until a few years back
http://www.haibike.de/produkte_liste_epower_en,3004.html
this said anecdotally I am seeing more and more people on e-bikes here in North America too, bike commuting every day these days at least a few times a week I get passed by somebody riding one of them, did not happen at all until a few years back