We all know that biking is an eco-friendly way of travelling. But freelance designer Stefan Wallman will make your biking experience into a different level with its extraordinary Zweistil space-shifting bike. With the Zweistil, you will not only produce zero emission while on the busy streets of your town or city, but you will also create and eye-catching stunts while traveling to your work or back home. The stunts are made possible with the Zwistil’s ability to transform from an ordinary to a recumbent type of bicycle. Equipped with a battery and hub-motor, this bike is of no doubt an eco-friendly one.