I am working on bike commuting about 16 miles each way to work daily. My total estimated weight for bike, laptop, supplies, motor, battery will be around 300lbs on a Trek 7.2. I have about 5 hills with anywhere between 2 and 7% grade for a total rise in elevation (sum of all hills) of about 2500 ft.
My goals are to be able to pedal at a decent pace without killing my knees and getting up the hills while trying to maintain about a trip time around 1 - 1.25 hours (about 15-17mph avg).
I looked at ezip, but the concerns with the battery, noisy motor and poor reviews have me looking at other options.
Anyone got a recommendation for these requirements?