Now that Ive had the 2007 Walmart eZip through a few years and running 2 batteries..Has anyone put a brush/less front hub motor with left thumb controller on this thing? While this may stir further debate, the bike has not given me any trouble at all. The end goal is really to do limited pedalling and go farther distances. I really wish I put a speedo on this to track the mileage, I take it everywhere. Before the replys start saying, "Buy a motor scooter", I already have a 150cc bike. There is something about being on the e-bike that satisfies. I estimate that the weight of a front hub motor and battery strapped to the top of the currie carrier where 2 more batteries reside ..heavier than I can imagine. Anyone done/ tried this ? Thanks for reading. Tom