I have the 48V kit ready for a spring install. The tricar is in the way where I have to work but I do open the box and lay out the parts every so often and I don't think that anyone will be sorry that they bought it. Neat,clean and easy install from what I've seen of the kit.
It's half of what I paid for a 36V hub motor that didn't move the bike and sidecar like I wanted it to due to the combined weight. I've been the route with front wheel and a then the back wheel but this is the way to go in my opinion.
Steve.