Good to see others adding to the thread. Might be important for people seeking alternate transportation to realize how inexpensive it is to construct an e-bike and not be saddled with a proprietary system. The Diamondback above was about $600 (already had the bike, which was worth about $200 at the time, so that could be a factor) to modify, and it's still possible to DIY for about the same cost since motor kits hover around $175-$225 and 48V batteries from reputable (IMO) companies for $350.