NSU Sportmax streamlined motorcycle, 250 cc class winner on the 1955 Grand Prix season From the fifties, streamlining started to Perform an increasing section in the event of racing motorcycles along with the "dustbin fairing" held out the potential for radical changes to motorcycle design. Other search engines like google https://drive.google.com/file/d/1Bo_QT2UtU6jj5IhyHRdHymmOHue5Kpz1/view?usp=drive_link