exo-, intra-, extra- + -bike -cycle e.g. exobike, intrabike...
exo- meaning giving out, as in exothermic (releasing heat), or "outside of".
intra- meaning "within": powered within.
extra- meaning "beyond".
The i has the plus of shortening to ibike (could be short for intelligent bike - referring to the smart choice of the rider!)
. There's always "superbike" too, in the true sense of "over & above" or "more than"
.
If you just want to be catchy, how about giga- or tera-bike, or to keep ahead of the times, peta- exa- zetta- or yetta-bike
(the prefixes above mega- and giga-).
The most individual characteristics of these bikes to me are that they are human/electric hybrid-powered while retaining the energy efficient & mobility aspects of bikes: though they are clean, other vehicles also claim this.
Maybe someone else can find a better prefix or suffix, or alternative expressing the "hybrid" aspect?
Even the "bike" part needn't be retained: I like the acronym style names like HPV & ENV, but sadly IV has another usage & unwelcome association with bikes
.
Stuart.