1972 Norton 750 Commando Mark IV ‘Fight’


1972 Norton 750 Commando Mark IV ‘Fight’

With Phil Aynsley


The Norton Commando was launched in 1967 because the substitute for the corporate’s 750 Atlas.

1972 Norton 750 Comando Mark IV
1972 Norton 750 Comando Mark IV

It was initially supposed to have a very new 800 cc DOHC parallel-twin engine however that was deserted, as was a less expensive redesign.

1972 Norton 750 Comando Mark IV

In the long run a modified Atlas motor was used, with the most important visible distinction being the ahead angled cylinders.

Wolff Ohlins designed the tank and seat bodywork

Design consultants Wolff Ohlins got here up with the look of the fibreglass tank/seat and ex-Rolls Royce engineer Dr Stefan Bauer (who had been concerned with the 800 cc engine) produced a brand new body that featured rubber mounting for the motor.

The body used rubber mounts for the engine

Later the corporate’s Chief Engineer Bernard Hooper needed to modify the body and thus the corporate’s “Isolastic” body was born.

1972 Norton 750 Comando Mark IV

The unique Commando was renamed the Fastback in 1969 and advanced by to the 1973 Mark V model. The bike seen here’s a 1972 Mark IV.

Norton Commando
1972 Norton 750 Comando Mark IV

It has the “Fight” motor that proved to be considerably problematic within the reliability stakes, regardless of offering 65 hp at 6500 rpm.

The “Fight” motor had a poor repute for reliability and was primarily based on the Atlas powerplant

Different 750 cc Commando fashions included the ‘R’, ’S’, Interpol police model,  Roadster, ‘SS’, Hello Rider and Interstate.

Norton Commando twin clocks
Norton Commando Lucas switchblock

850 cc fashions have been additionally developed with the ultimate Commando being produced in 1977.

Norton Commando entrance brake caliper
The Norton Commando ran twin exhausts
Energy was 58 bhp, however the bike weighed over 190 kg dry
1972 Norton 750 Commando Mark IV 'Combat'
The disc brake was an improve over the sooner drum models

Norton 750 Commando Specs

Norton 750 Commando Specs
Engine Air-cooled, four-stroke parallel-twin, push-rod OHV, two-valves per cylinder
Capability 745 cc
Bore x Stroke 73 x 89 mm
Compression Ratio 9.4:1
Induction Twin 30 mm Amal concentric carbs
Max Energy 65 hp @ 6500 rpm
Gearbox 4-speed
Entrance Suspension Telescopic forks
Rear Suspension Twin rear shocks, five-way preload adjustable
Brakes Entrance disc brake, rear drum brake
Tyres 4.10 x 19in F/R
Weight 203 kg dry