It's 1948 and Norton is at the Isle of Man. It's also at a crossroads, facing stiff competition from multi-cylinder machines from the likes of Moto Guzzi. In this video, the Norton team fettles the works racers under the steady gaze of boss Joe Craig. Although Artie Bell would go on to win the Senior TT, his victory had much to do with a field atrophied by breakdowns and bad luck. The writing was on the wall. It was time to innovate. With the help of auto racing firm BRM, Norton began designing a water-cooled, transverse four-cylinder engine with DOHC to take the fight to the continental challengers. It was not to be, however, and the project failed to make it past the preliminary design phase.