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1971-1973 750cc Norton Commando Racing Motorcycles

1971-1973 750cc Norton Commando Racing Motorcycles

At the time that Norton released its 750cc Commando in the late Sixties it was important to showcase such a high performer at international races for standard production motorcycoles. In 1969 a small development department set up at Thruxton circuit by Norton Villiers prepared two Commandos to represent the company in major production class events including the Isle of Man TT races and the Thruxton 500 mile race. The pair achieved notable successes over five seasons, during which time several modifications were implemented.

Increased cornering clearance was the aim of two obvious alterations. One was the routing of both exhaust pipes to the right of the machine and the other was a re-positioning of the power unit and its isolastic mountings, placing it higher and shifting it 10mm to the right. To gain the last few mm of clearance,the primary chaincase was chamfered on iys lower edge.

1971-1973 750cc Norton Commando Racing Motorcycles

The motorcycle carring number 2 replicates Thruxton or Isle of Man trim, with a large capacity fuel tank and full ligting equipment. White, red and black colours werea doptedto match the Player-sponsored F750 racers in 1973.

  • Engines - 745cc (73 x 89mm), air-cooled overhead valve parallel twin, 11:1 compression ratio, two 33mm Amal carburettors, Lucas Rita electronic ignition
  • Transmission - Triplex chain primary drive, wet multi-plate clutch, Quaife five-speed gearbox, chain final drive
  • Chassis - Tubular double cradle frame, telescopic fork front suspension, swinging are rear suspension, disc front brake, drum rear brake, wheels - 18in
  • Power - 74bhp @ 7200rpm
  • Dry Weight - 350lb (159kg)
  • Top Speed - 150mph
  • Thruxton 500 mile RaceM

  • 1970 - 1st, Peter Williams/Charlie Sanby
  • 1971 - 1st, Dave Croxford/Mick Grant
  • 1973 - 1st, Norman White/Rex Butcher
  • 750cc Production TT

  • 1969 - 2nd, Paul Smart
  • 1970 - 2nd, Williams
  • 1971 - lap record Williams (101.06mph)
  • Hutchinson 100 Production Race

  • 1971 - 1st, Williams
  • 1973 - 1st, Williams