1974 Norton MK2A 850 Commando Roadster

Norton MK2A 850 Commando Roadster
Picture credits: terwog. Click for large image of the 1974 Norton MK2A 850 Commando Roadster

General motorcycle information

Model
Norton MK2A 850 Commando Roadster
Year
1974
Category
Sport
Rating

Engine and transmission

Displacement
50.52 cubic inches (828.0 ccm)
Engine type
Twin, 4 stroke
Power
60.0 horsepowers (44.7 kiloWatts) at 6250 RPM
Torque
-
Compression
8.5:1
Bore x stroke
4.70 x 5.43 inches (77.0 x 89.0 mm)
Valves per cylinder
2
Fuel system
Carburettor
Fuel control
Overhead Valves (OHV)
Cooling system
Air
Gearbox
4-speed
Transmission type, final drive
Chain
Starter
Kick
Fuel consumption
5.11 litres/100 km, 19.6 km/l or 46.0 mpg
Top speed
189.9 kmh (118.0 mph)

Chassis, suspension, brakes and wheels

Front suspension travel
9.30 inches (152.4 mm)
Rear suspension travel
4.65 inches (76.2 mm)
Front tyre
4.10-19 -
Rear tyre
-
Front brake
Single disc
Rear brake
Expanding brake (drum)

Physical measures and capacities

Dry weight
415.0 pounds (188.2 kg)
Wet weight
440.0 pounds (199.6 kg)
Seat height
48.0 inches (787 mm)
Wheelbase
87.9 inches (1440 mm)
Overall length
136.4 inches (2235 mm)
Ground clearance
9.3 inches (152 mm)
Fuel capacity
3.00 gallons (11.4 litres)
Reserve fuel capacity
1.00 gallons (3.8 litres)
Oil capacity
0.79 gallons (3.0 litres)

Further motorcycle information