Entire video just showing riding around.
No noticeable hills.
http://www.ampedbikes.com/
20 MPH
20-30 mile range on 36V 10AH batteries (not included)
$360 + S&H for a (front) kit ($380 for rear)
36V brushless 500W (700 peak) motor with rim
Parts:
A. 36V 1.5 A SLA smart charger.
B. Spare set of handlebar grips (you may have to cut your old ones off).
C. Thumb throttle with power switch and LED battery Gauge.
D. Highly efficient computer controlled speed controller.
E. Brake leads
F. Brakes with motor cutoff switch. (this cuts the power to the motor when applying the brakes)
Go DW Go - *economical* mass production