Here is the link to the site of Martin Staubach:
Lots of pictures and german text about the history of Martin's recumbents which is closely related to the ZOX story and the E-Werk workshop where I am working. Here is a picture of one of the first ZOX prototypes in the workshop:
Martin has built the first twisted chain FWD prototypes in 1992 http://www.staubachs.de/radh1990-Dateien/image025.jpg
which were later improved by Sergio Gomez.
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