In the history of the motorcycle, the 1930s and 1949s represented a remarkably fertile era. The late ’20s coincided with a profound transformation that saw the two-wheelers abandon the “underslung” configuration, with the fuel tank being set above the frame’s top tubes and the vehicles taking on an overall appearance of modernity. The performance of the engines was improved, as were the handling and reliability, factors that permitted a broader section of the public to take up motorcycling. The British marques of the period were pillars of the industry that wrote chapters of motorcycling history, especially in world of racing: among the many of particular distinction were Ariel, BSA, Triumph, Norton, Matchless, AJS, Sunbeam, Rudge, Royal Enfield and Velocette. The Brough Superior continued to be the pinnacle of British production before being replaced by another marque of undisputed excellence: Vincent.