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An verschiedenen Rädern....Wo taucht der Begriff auf?
Edit: hab doch noch was gefunden:
Hier:
".....a Services des Courses (SDC) model, the top of the range model from the SBDU....
An SDC model means it is built with Cinelli lugs (head lugs, seat lug and BB shell). The Cinelli seat lug means that it has to have side fastening seat stays. SDC frames were never built with the fast back style of stays due to the built in seat bolt fastening and shape of the lug.
SDCs were built in either 531c or 753R. The Cinelli BB shell typically used was the standard SCM....."
Scheinbar sowas wie die Topmodelle unter den SBDU.
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