91K views · 564 shares | 1938, Norton Big Four 633 | Great Britain  In the fall of 1909, Norton Motors Ltd. presented one of its most successful, long-term models called Model 1 (it was also known as Big Four 633). This motorcycle was mostly intended for hauling the sidecar. Model 1 was the first motorcycle made by Norton Motors Ltd. From 1907 to 1954, the Big Four 633 was manufactured in many modifications. | Motorworld by V.Sheyanov | Facebook