| MODEL | NORTON COMMANDO 750 ROADSTER 1970 - 1971 |
| Year | 1970 - 1971 |
| Engine Type | Four stroke, parallel twin cylinder, pushrod OHV, 2 valves per cylinder |
| Displacement / Capacity | 745 cc / 45.5 cu in |
| Bore X Stroke | 73 x 89 mm |
| Compression Ratio | 9.0:1 |
| Cooling System | Air cooled |
| Max Power | 58 hp / 43 kW @ 6800 rpm |
| Max Torque | — |
| Ignition | 12V, alternator |
| Induction | 2 x 30 mm Amal concentric carburettors |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shocks |
| Front Brakes | Single 203 mm drum |
| Rear Brakes | Single 178 mm drum |
| DIMENSION SPECS | |
| Overall Length | 2220 mm / 87.5 in |
| Overall Width | 660 mm / 26 in |
| Overall Height | — |
| Seat Height | 863.6 mm / 34 in |
| Wheelbase | 1441 mm / 56.75 in |
| Ground Clearance | — |
| Dry Weight | 195 kg / 430 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 3.25-19 |
| Rear Tyre | 4.00-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 10 Litres / 2.6 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Roadster arrived in 1970 as the more conventional, low-exhaust Commando with a flat seat and reverse-cone silencers. It used the same rubber-mounted 745 cc twin as the Fastback and became the most popular model in the range. Handling and low vibration were its strengths; brakes were weak.
