Walking the same way by bike is easier than walking, but you have to pedal and in the end you get tired the one that goes above (especially if you have to go uphill). That is why this spring is expected to take the electric bike. Pedal like any other bike, but with battery and electric motor as support.
Speed change options (using sprockets) are like any other bike. 180,000 sts. or 9,000 pounds and 25 kilometers of battery life. Battery charging will take three hours.