In 1952 , still with Gilera , he was again World Champion , again taking victories in Belgium and the Netherlands .
In 1950 , Masetti won the Grands Prix of Belgium and the Netherlands and defeated Geoff Duke for the 500cc World Championship .
In 1952 , still with Gilera , Masetti was again World Champion , again taking victories in Belgium and the Netherlands .
In 1950 , Masetti won the Grands Prix of Belgium and the Netherlands and defeated Geoff Duke for the 500cc World Championship .