I had 
            been racing 750cc Nortons since 1975. Now I had my very own engineering 
            workshop, so, as I extracted more and more power from my engines, 
            and the original cylinders, crankcases, cranks etc started to break, 
            I designed and made my own. I would make small batches, use a few 
            in my own engines and sell the rest to other racers.