On the 21st to 23rd November Kieft ran at Montlhery to establish records for 350cc and 500 cc

Class J (up to 350cc)

Stirling Moss, Ken Gregory -  50km 78.44 mph, 50 miles 78.75 mph, 100 km 79.08 mph, 1 hour 79.37 mph, 100 miles 79.62 mph, 200 km 77.11 mph

Class I (up to 500cc)

Stirling Moss, Ken Gregory, Jack Neill - 50 km 90.06 mph, 50 miles 90.63 mph, 100 km 90.87 mph, 1 hour 91.34 mph, 100 miles 91.4 mph, 200 km 88.6 mph, 200 miles 86.99 mph