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Nortom Commando 850 (1975)

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Nortom Commando 850 (1975)

At a glance

Capacity
829 cc / 50.6 cu in
Power
60 hp / 44.7 kW @ 6200 rpm

The full picture.

The 1975 Norton Commando 850 is a classic motorcycle with a four stroke, parallel twin cylinder, push rod engine that has a capacity of 829 cc. It has a compression ratio of 8.5:1 and uses 2 x ~A30 mm Amal concentric carburetors for induction. The bike is air cooled and uses a 120W Lucas alternator for ignition. It has both electric and kick start options, and can reach a maximum power of 60 hp at 6200 rpm. The Norton Commando 850 has a metal diaphragm clutch and a 4-speed transmission with a final chain drive. The bike has a twin downtube cradle with Isolastic engine mounts, telescopic front forks, and a swing arm with Girling coil springs for rear suspension. Front and rear brakes are both single disc, and the bike has a 19 liter fuel tank. It can achieve an average fuel consumption of 5.3 L/100 km and has a top speed of 185 km/h. The wet weight of the bike is 233 kg, and it has a standing 1/4 mile time of 14.4 seconds, with a top speed of 145 km/h. Overall, the Norton Commando 850 is a powerful and stylish motorcycle with impressive performance capabilities.


Technical specifications:

Make Model: Norton Commando 850

Motorcycle technical specifications
Year1975
EngineFour stroke, parallel twin cylinder, push rod 2 valves per cylinder.
Capacity829 cc / 50.6 cu in
Bore x Stroke77 x 89 mm
Compression Ratio8.5:1
Cooling SystemAir cooled
Induction2 x ~A30 mm Amal concentric carburetors
Ignition120W Lucas alternator
StartingElectric and kick
Max Power60 hp / 44.7 kW @ 6200 rpm
ClutchMetal diaphragm clutch
Transmission4 Speed
Final DriveChain
FrameTwin downtube cradle with Isolastic engine mounts
Front SuspensionTelescopic forks
Rear SuspensionSwing arm with Girling coil springs
Front BrakesSingle disc
Rear BrakesSingle disc
Front Tyre4.10-19
Rear Tyre4.10-19
Wet Weight233 kg / 514 lbs
Fuel Capacity19 Litres / 5.0 US gal
Average Fuel Consumption5.3 L/100 km / 18.7 kn/l / 44 US mpg
Standing 1/4 Mile14.4 sec / 145 km/h / 90 mph
Top Speed185 km/h / 115 mph