I have recently been able to get hold of a new Scott Cyclo Cross CX comp 7075 frame (around $150 rather than the RRP of $900), which is very light and corrosion resistance etc to build into a electric City type bicycle (flat bars with Mountain Bike Gearing) for a post economic collapse transportation vehicle or otherwise known as Solar PV Prepper Electric Bicycle.

The addition of an electric motor (preferably rear electric hub drive motor conversion kit) will add considerable weight of around 15-20lbs to the base weight of around 20lbs taking the weight to around 35-40lbs. A Lithium Ion battery will be between 300-400 WHrs, which in theory would give a range of 25-30 miles on flat terrain between charges

Does anyone have any recommendations or experience with e-bike conversion kits such as the Bionx models.

http://www.bionxinternational.com/na-en/products/

http://www.bionxinternational.com/downloads/files/2012-bionx-ebikes-EN-NA-web.pdf

or other kits.