During the '70s bike boom in the US there was a shop in my town that did a good business selling a German made "10-speed" named "Kalkoff". It was quite similar to various low end euro bikes of the time: lugged, not particularly light frame of indifferent finish, cottered steel cranks, Bailla brakes (!), Simplex plastic derailleurs and a rock hard, uncovered plastic saddle. From what I recall, the cranks were notorious for comming loose. These bikes were certainly nothing to get excited about.