 After the purchase of an AJS motorcycle shortly after the end of the Second World War, Amm started grasstrack racing near Salisbury and finished last in his first race.The next season the AJS motorcycle was replaced with a Triumph motorcycle.The purchase of a brand new Norton motorcycle allowed Amm to enter the prestigious 1949 Port Elizabeth 200 Motor-Cycle Race in South Africa and despite breaking the lap-record he finished in 17th place when the clutch started to slip.