Zweistil: Space-shifting bike plies well on all roads
Made Popular May 22 2009
Designed by Stefan Wallmann, the “Zweistil” is essentially a human powered vehicle that can be shape-shifted from an ordinary to a recumbent bicycle while driving. Thereby it not just offers the comfort and visibility of a city bike, but also...
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The concept was a teamwork by the german designers daniel knuepfer, living in konradsreuth, and stefan wallmann, hamburg.