PlaidRunner: Rebuilding my E-bike

I routinely use a bicycle for trips that people cannot conceive of, like picking up my partner from the airport, at night, after it rained all day. (Somehow she is amenable.) This is my life since buying the oldest, most basic model RadRunner from Craigslist. The frame is stout and very capable for its length. It will carry a whole adult passenger on the back plus a load in the front, but it’s a normal-size bicycle for maneuvering and storage purposes. It still works perfectly after three yea...