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Spiegel.de: 90 Jahre BMW: Volle Fahrt voraus - DER SPIEGEL
May 2, — Vierzylinder-Reihenmotor: BMW-Ingenieur Josef Fritzenwenger baute den Vierzylinderblock waagerecht ein, womit die Kurbelwelle längs ... › Mobilität
年BMW K 二手摩托车
www.2smoto.com
Jul 27, — Two years earlier, in 1977, the BMW engineer Josef Fritzenwenger built a curious experimental bike: As a trial, he mounted the engine of a ... › m_news
BMW'S circuitous route to the K-series flat four - PressReader
www.pressreader.com
Jul 16, — It was Josef Fritzenwenger who led the way with the then radical notion of flat-four engine coupled to an engine speed clutch and shaft ... › classic-motorcycle-mechan...
BMW K Hyperleap
hyperleap.com
50% (1/1). PSA X enginePSA XXV. In 1977, Josef Fritzenwenger presented a prototype using a PSA-Renault X-Type engine from a Peugeot › topic › BMW_K100
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