The wheels in pictures look like motorcycle wheels. The fat, almost rod-like looking spokes and lacing pattern remind me of what I had on my first 50cc motorcycle when I was fifteen years old. If all fails, you might want to send the customer to a motorcycle shop
Anyway, are eBikes still bikes? I mean, just because it somewhat looks like one, is it a one? Is 'moped' a bicycle, or a motorcycle? You know that kind of propelling device maybe still used in Europe? It has a motorcycle engine but you also need to pedal like on a bicycle, especially uphill when the little engine can't do it anymore... Do we live in interesting times.