An addon kit for a bicycle is currently around ~$400-$1500. With more cities rolling out ebike stations things are looking good. http://www.monoprice.com/page

An addon kit for a bicycle is currently around ~$400-$1500. With more cities rolling out ebike stations things are looking good. http://www.monoprice.com/pages/ebikekit http://www.monoprice.com/pages/ebikekit