1958 Manx Norton 10M 77295 Engine Number: 10M77295. Raw Power, with a history stretching back almost to the beginning of motorcycling history itself, the Norton single is without doubt one of the greatest over-the-counter production racers ever produced - The Manx is the epitome of the British racing single. These extremely 'cammy' Nortons dominated road racing at a Grand Prix level until they were finally eclipsed by the Italian and Japanese multi-cylinders. Even then, both factory and privately entered Manx models put up some tremendous performances often against heroic odds to win countless races well into the sixties.