Thanks Adam, the rack really works great. The price was great too. Right now i'm using about 20 Wh/km. I have to take it easy on the throttle because i'm using a temporary 12 fet controller while my 24 fet gets repaired. So at that rate i could get 66 km out of a charge (no pedal) on my 24s 15ah pack. My commute is about 22 km total. My speed is anywhere between 30 and 50 km/h. When commuting, I avoid going over 50, too much pedestrians, traffic, other cyclists ...etc. Also, i need to keep that little controller happy Sometimes, I like to go out at night and test the limits off road like in that huge parking lot nearby The acclelration is crazy!