One of the most influential sub-cultures of Motorcycle history, for them, doing 'the Ton', 100MPH, was where you had to be.
No mean feat in those days. And no ordinary bike could do it without hours of hard graft with the spanners. Bikes would be stripped to the bare bones, with nothing to weigh them down or up the drag. If you wanted to do The Ton back then, you needed balls. They had them in spades.
Ton Up Boys, we salute you.