About This Project

Rental Bicycles for the City of Mainz

960 Bikes for a rental bike system in the city of Mainz – a German pilot project with governmental support.

The Design: „Paper Bicycle“ – a patented frame design with various special adaptions for public cyclling operations. A unisex design with a low step-over main frame support using a steel frame with an integrated chain box. 26“ wheels with the innovative seemless internal gear hub NuVinci (360% ratio) and Shimano Rollerbrakes. Hub dynamo and fail safe cabling and wiring. The bikes are also secured against theft using special safety screws and nuts. Sensor-controlled LED lights automatically turn on whenever needed.



  • 960 Bikes
  • „Paper Bicycle“
  • unisex design
  • 26“ wheels
  • steel frame
  • integrated chain box
  • Shimano rollerbrakes
  • fail safe cabling and wiring
  • secured against theft
  • Sensor-controlled LED lights