| MODEL | NORTON COMMANDO 850 1974 |
| Year | 1974 |
| Engine Type | Four stroke, parallel twin cylinder, pushrod, 2 valves per cylinder |
| Displacement / Capacity | 829 cc / 50.6 cu in |
| Bore X Stroke | 77 x 89 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Max Power | 44.7 kW / 60 hp @ 6200 rpm |
| Max Torque | — |
| Ignition | Lucas alternator |
| Induction | 2 x Amal carburettors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 Speed |
| Clutch | Diaphragm type pressure plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Twin downtube cradle with Isolastic engine mounts |
| Front Suspension | Telescopic fork |
| Rear Suspension | Dual shocks |
| Front Brakes | Single disc |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | 1440 mm / 56.7 in |
| Ground Clearance | — |
| Dry Weight | 188 kg / 414 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 4.10-19 |
| Rear Tyre | 4.10-19 |
| FUEL SYSTEM | |
| Fuel Capacity | 19 Litres / 5.0 US gal |
| Fuel Consumption | — |
| Top Speed | — |
By 1974 the Commando 850 was the Mk II generation of Norton's late twin, with the 829 cc engine and Isolastic rubber mounting. It was offered in several body styles such as Interstate and Roadster. The design dated back to the late 1940s, and period criticism centred on dated performance and braking rather than on character.
