I've been thinking of the same thing to use as a replacement for 1st and maybe 2nd gear. Been seeing 24/36/48V motors for sale for cheap, thinking to hook that up to a 5th wheel.
I spent a fair pct of my driving in 25/35 mph zones with many lights/stop signs I EOC quite a bit (esp now that I'm pumped up to 40psi
) and try to time the lights. I also come across a bit of stop and go, which wreaks havoc on my mileage.
It sounds like it'll only really be good as a 1st gear replacement, and big weight addition.
Mike, I didn't see on your website, do you have an estimate on weight for the wheel assembly? And were those 300# worth of batteries just for the booster 48V system?