The Quantel Norton Cosworth at the BOTT race in Daytona '80 or '81.Roger Marshall up, I think this is the year they won the race.
In this form the bike had no frame, much like the Ducati Panigale. The steering head attached to an aluminum structure that bolted to the head. The swingarm pivoted on plates from the rear of the motor/trans package.The monoshock attached to the rear of the head . That was about it.