I tested my bike extensively this weekend. Fully charged with BMS balancer, I got 37 miles with no pedaling and avg speed of 12 mph. The controller apparently cutoff and the cells got down to 2.6V.

My system is 20AH cells x 8, and 450W motor/controller from a Currie Tech Ezip bike that was crashed. I retrofitted the electric components onto another bike.

If I get a better or more efficient motor, say from 9 Continent, I wonder if I can push 40/50 mile range.