Zweistil Zweistil from Stefan Wallmann Zweistil Zweistil - bicycle 2.0 - pedelec with variable frame for comfortably riding long distances as well as crowded places together with Daniel Knuepfer Zweistil - bicycle 2.0 - pedelec with variable frame for comfortably riding long distances as well as crowded places together with Daniel Knuepfer Zweistil - bicycle 2.0 - pedelec with variable frame for comfortably riding long distances as well as crowded places together with Daniel Knuepfer Zweistil - bicycle 2.0 - pedelec with variable frame for comfortably riding long distances as well as crowded places together with Daniel Knuepfer Zweistil - bicycle 2.0 - pedelec with variable frame for comfortably riding long distances as well as crowded places together with Daniel Knuepfer semi-working prototype - build to show that during-the-ride-transitions are not hazardous together with Daniel Knuepfer gLike Zweistil Industrial Design Share R 7 n Stefan Wallmann Dipl.Designer, M.A. Hamburg, Germany Follow Contact