1973 Norton Commando 850

1973 Norton Commando 850

standard70sUnited Kingdom

The 1973 1973 Norton Commando 850 is a 828cc twin-cylinder standard motorcycle that became one of Norton's most memorable motorcycles of the 1970s.

Specifications

Engine

Type
OHV twin
Displacement
828 cc
Cylinders
2
Power
56 hp @ 5900 rpm
Torque
62.0 Nm
Compression
—
Bore × Stroke
77.0 × 89.0 mm
Cooling
Air-cooled
Fuel System
2x Amal carburetors

Chassis & Transmission

Frame
Steel Isolastic
Front Suspension
Telescopic fork
Rear Suspension
Twin shock Isolastic
Front Brake
Single disc
Rear Brake
Drum
Front Tyre
—
Rear Tyre
—
Transmission
4-speed
Final Drive
Chain

Performance

Top Speed
190 km/h (118 mph)
¼ Mile
—

Dimensions & Weight

Dry Weight
195 kg (430 lbs)
Wet Weight
210 kg (463 lbs)
Seat Height
800 mm
Wheelbase
1440 mm
Ground Clearance
—
Fuel Capacity
14.0 L

History & Story

When Norton unveiled the 1973 Norton Commando 850 in 1973, it signaled the company's commitment to the standard motorcycle segment. Built in United Kingdom, this standard motorcycle embodied the spirit of 1970s motorcycling.

Powering the 1973 Norton Commando 850 is a 828cc OHV twin producing 56hp. This twin-cylinder engine uses air-cooled cooling and draws fuel through 2x Amal carburetors. A 4-speed gearbox sends power via chain final drive to the rear wheel.

Weighing 195 kg (430 lbs) dry, the 1973 Norton Commando 850 uses a steel isolastic frame, telescopic fork front suspension, and twin shock isolastic rear suspension. The braking system comprises single disc front and drum rear units.

Performance-wise, the 1973 Norton Commando 850 achieves a claimed top speed of 190 km/h (118 mph). With a fuel capacity of 14.0 liters, it offers reasonable range for standard motorcycle duties. The seat height of 800 mm makes it comfortable for most riders.

Today, the 1973 Norton Commando 850 is considered a respected classic that attracts serious collector interest and continues to appreciate. Parts availability is rated as good, making ownership relatively straightforward. It remains an icon of Norton motorcycling from 1970s.

Known Issues

  • Isolastic mounting rubber bushings wear
  • Oil leaks from numerous gasket surfaces
  • Lucas electrics need attention
  • Gearbox mainshaft bearing wear

Fun Facts

  • The Norton Commando won the MCN Machine of the Year award five consecutive times (1968-1972)
  • The 1973 Norton Commando 850 was produced in Norton's United Kingdom facilities
  • The 1973 Norton Commando 850 featured a steel isolastic frame typical of 1970s design philosophy

Collector Information

Parts Availability
Good
Collector Rating
7/10

Resources & Parts

🔧 Find 1973 Norton Commando 850 Parts on eBay Search eBay Motors for parts, accessories and restoration supplies 📖 Haynes Manual for Norton Workshop manuals, service guides and technical references 🛡 Insure Your Classic Norton Specialist classic motorcycle insurance from Hagerty

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