Vehicle, Mobility and Transportation Design Ozoa Electric Bicycle by Nimrod Riccardo Sapir The OZOa electric bike features a frame with a distinctive ‘Z’ shape. The frame forms an unbroken line that connects key functional elements of the vehicle, such as wheels, steering, seat and pedals. The ‘Z’ shape is oriented in such a way that its structure provides a natural in-built rear suspension. Economy of weight is provided by the use of aluminum profiles in all parts. A removable, rechargeable lithium ion battery is integrated into the frame.