GP motocross 500 cc to Lichtenvoorde 1975 Winner Gerrit Wolsink in action Date: 27 July 1975 Location: Gelderland, Lichtenvoorde Keywords: motocross, races Person name: Wolsink, Gerrit Stock Photo - Alamy
World Motocross Champion Rahier - Down under in Australia
1975 October Motocross Action - Vintage Motorcycle Magazine- New Castle Kentucky | eBay