Hello, I have a few questions for you all here as I am not to verse in bike ID. One is do the European bike owners use the same terms in establishing names to bikes? My bike is a 49 Durkopp a thin framed thin wheeled bike with fenders. It has some odd parts on it as far as the hub and derailleurs that are rarerare and considered high end for the time. Has dual brakes in the rear, an rod asised drum and clamp type operated by a single brake lever that looks period correct with the rest of the bike. All together it has nine speeds. Not sure what to call this bike not much to compare to as the manufacturer made mostly motor bikes and other machinery of the day. The style looks something like Schwinn not the heavy cursers more like thiner ten speed frame with the cruisedual center bars the cruisers have. Thanks for any input on the subject.