Here's a cool Motor/Battery Simulator to while away the hours.. lots of variables to plug in including weights, wind, incline, etc.. this will get you close as to what will meet your needs..


Justin also has Brompton Kits .. check out his videos.. Justin is definitely experienced ..

I have one of his low powered front hub kits with torque sensing bb going into a Litespeed Ti road bike as we speak..

As a strong rider, you will flat love a well executed e-assist bike.. especially as a commuter.. higher speeds with less time spent on the road, and less sweat .. excellent cardio if you keep your cadence up too...