dogman dan wrote: Why exactly is the weight of your bike a problem?
I no longer maintain a four wheel vehicle so there is no danger of needing to load it in a car (because of the cost of insurance, maintenance, taxes, etc). However there are these municipal buses with bike racks on the front bumper Otherwise most of trips are under five miles.
I am going to build the light weight bike.
The idea of including the motor assist was inspired by a 30 second Video I saw for the "Leed Pocket Bike Juice".
The big difference is 36 volts allows me the option of using the battery from the other bike for a longer trip.