The 1973 Norton Commando 850 from United Kingdom was powered by a 828cc OHV twin producing 56hp at 5900rpm. Weighing 195.0kg (430 lbs) and with a seat height of 800mm, it was aimed at standard riders.
The 1975 Norton Commando 850 Mk III by contrast offered 828cc of OHV twin power, delivering 58hp at 6000rpm. Tipping the scales at 205.0kg (452 lbs) with a top speed of 185km/h (115 mph), it offered a distinct riding experience. 1970s bikes from the Japanese superbike revolution are increasingly sought after. Clean, original examples have seen significant value appreciation.
Specifications Comparison
| 1973 Norton Commando 850 | 1975 Norton Commando 850 Mk III | |
|---|---|---|
| Displacement | 828 cc | 828 cc |
| Power | 56 hp | 58 hp |
| Torque | 62.0 Nm | 62.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 190 km/h | 185 km/h |
| Quarter Mile | — | — |
| Dry Weight | 195.0 kg | 205.0 kg |
| Wet Weight | 210.0 kg | 220.0 kg |
| Seat Height | 800 mm | 800 mm |
| Wheelbase | 1440 mm | 1440 mm |
| Fuel Capacity | 14.0 L | 14.0 L |
| Gears | 4 -speed | 4 -speed |
The Verdict
Comparing these two Norton machines reveals the brand's evolution. The 1973 Norton Commando 850 laid the groundwork with 56hp, while the later 1975 Norton Commando 850 Mk III pushed output to 58hp. From a collector's perspective, the 1973 Norton Commando 850 holds the edge with a 7/10 rating. Either way, both are worthy additions to any Norton collection. Parts availability is good for the 1973 Norton Commando 850 and moderate for the 1975 Norton Commando 850 Mk III — an important factor for any restoration project.
About the 1973 Norton Commando 850
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.
Full 1973 Norton Commando 850 Profile →About the 1975 Norton Commando 850 Mk III
Born in 1975, the 1975 Norton Commando 850 Mk III is a 828cc twin-cylinder standard motorcycle producing 58hp from Norton.
Full 1975 Norton Commando 850 Mk III Profile →