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
| Year | 1975 |
|---|---|
| Engine | Four stroke, parallel twin cylinder, push rod 2 valves per cylinder. |
| Capacity | 829 cc / 50.6 cu in |
| Bore x Stroke | 77 x 89 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Induction | 2 x ~A30 mm Amal concentric carburetors |
| Ignition | 120W Lucas alternator |
| Starting | Electric and kick |
| Max Power | 60 hp / 44.7 kW @ 6200 rpm |
| Clutch | Metal diaphragm clutch |
| Transmission | 4 Speed |
| Final Drive | Chain |
| Frame | Twin downtube cradle with Isolastic engine mounts |
| Front Suspension | Telescopic forks |
| Rear Suspension | Swing arm with Girling coil springs |
| Front Brakes | Single disc |
| Rear Brakes | Single disc |
| Front Tyre | 4.10-19 |
| Rear Tyre | 4.10-19 |
| Wet Weight | 233 kg / 514 lbs |
| Fuel Capacity | 19 Litres / 5.0 US gal |
| Average Fuel Consumption | 5.3 L/100 km / 18.7 kn/l / 44 US mpg |
| Standing 1/4 Mile | 14.4 sec / 145 km/h / 90 mph |
| Top Speed | 185 km/h / 115 mph |
