Originally Posted by
BlazingPedals
Reading this thread, you mentioned getting a 16-inch wheel laced for an electric drive hub. If I remember correctly (which happens less and less,) the rear on a Bike-E was 406 (20-inch) while the front was 349 (16-inch.)
There are a number of electric bike conversions that put the hub motor in front. It avoids the problem of interfacing with the gear cluster and disk brake (if present).
I'm not sure I'd do this on a BikeE- there's not much weight on the front wheel and hence less traction.