Manufactured by RUPP Motorrad A.G., Swinemünde, Grüne Fläche, 1928-1932
At the time, Swinemünde was part of Germany. It is now in part of Poland, named Swinoujscie.
Two models were produced: one with a 198cc ohv engine of their own design and a 498cc model with a very modern Kürchen engine with 3-valve OHC valve train. These were available in Sport and Supersport versions, with single and dual exhuast ports.
The firm is believed to have been founded in 1914 as a bicycle manufacturer, Rupp Fahrzeugbau AG.
Sources: Hartmut Schouwer, Tragatsch p267.
Wed Nov 30 2005
reott at comcast.net
rupp 36 spoke hub
I recently found a 36 hole conical rear motorcycle hub. marked Rupp PN33184-5 and the backing plate is marked 33186-7. i cannot find anything from the rupp minni bike folks. i was wondering if this would fit a german rupp. it was laced to a 18in Akront rim with a continental road tire on it. i can send pics if they would help. any info would be greatly appreciated.
I have done a little more research and im about sure this isnt anything the Rupp of ohio folks ever produced. Please let me know what you think.
I somehow doubt that they are from the German Rupp, either. The design is very much like that of scramblers of the late 60s and 70s. A strong clue is the fact that the brake drum and sprocket are on the same side, an unusual feature. There appears to be some writing on the brake arm - does this give any further clue, or is it just a part number?
I'll put money on it being a Maico.