DISRAELI GEARS

Durex

German Patent 580550 main image German Patent 595542 main image German Patent 580550 main image

Durex (no sniggering at the back) was the cycle parts brand of Präzision-Werke Bielefeld, often shortened to PWB. Unsurprisingly, this was a precision engineering business based in Bielefeld in Germany. It is possible that PWB was founded in 1903.

PWB manufactured a range of products, particularly hubs with back-pedal brakes, and in the 1930s they produced rather simple, basic derailleurs under the Durex brand. After the Second World war they manufactured Simplex derailleurs under license - however these were not branded Durex but were branded Simplex. PWB added a subtle 'D' stamped onto them to indicate that they were made by Durex or in Deutschland or, perhaps, both.


see also German Patent # 580,550 - Durex 1932

see also German Patent # 580,550 - Durex 1932

German Patent 580550 thumbnail


see also German Patent # 595,542 - Durex 1933

see also German Patent # 595,542 - Durex 1933

German Patent 595542 thumbnail


see also VDI Nachrichten 11/1951 - Das Fahrrad und seine technischen Besonderheiten

see also VDI Nachrichten 11/1951 - Das Fahrrad und seine technischen Besonderheiten

VDI Nachrichten November 1951 - Das Fahrrad und seine technischen Besonderheiten scan 01 thumbnail


see also Kosmos 1956 Präzision-Werke Bielefeld ad

see also Kosmos 1956 Präzision-Werke Bielefeld ad

Kosmos 1956 - Prazision Werke Bielefeld advert thumbnail