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Classic · 1973

Commando 750 Roadster

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MotoLibrary Score
53 /100 Balanced
Power
60 HP
Top Speed
185 km/h
Engine
745 ccm

1973 Norton Commando 750 Roadster Technical Analysis & Specification Breakdown

Positioned in Norton's classic motorcycle lineup, the 1973 Norton Commando 750 Roadster relies on a 745 cc (45.5 cu in) oil & air-cooled twin, four-stroke powerplant. In factory specification, peak output is rated at 60 HP (43.8 kW) at 6,200 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 80.5 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Rider ergonomics and chassis geometry center around a 1,448 mm (57 in) wheelbase engineered for balanced agility and highway composure. The 25-liter (6.6 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 185 km/h (115 mph).

Within MotoLibrary's Norton archive, this model family spans 2 indexed model years from 1972 to 1973, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
80.5 HP/L
Engine
Displacement 745.0 ccm (45.46 cubic inches)
Engine Type Twin, four-stroke
Engine Details Twin, four-stroke
Power 60.0 HP (43.8 kW)) @ 6200 RPM
Compression 8.5:1
Bore x Stroke 73.0 x 89.0 mm (2.9 x 3.5 inches)
Valves/Cylinder 2
Fuel System Carburettor. twin amal 32 mm
Fuel Control Overhead Valves (OHV)
Ignition 2-coil
Cooling Oil & air
Max RPM 8000
Transmission
Final Drive Chain (final drive)
Performance
Top Speed 185.0 km/h (115.0 mph)
Chassis
Frame Type duplex tubular
Front Suspension roadholder telescopic forks
Front Travel 152 mm (6.0 inches)
Rear Suspension swingarm and shock absorbers
Wheelbase 1448 mm (57.0 inches)
Wheels & Brakes
Front Brakes Single disc. 1-piston calipers
Rear Brakes Expanding brake (drum brake). cable
Dimensions & Weight
Fuel Capacity 25.00 litres (6.61 US gallons)
Other
Starter Kick
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Rider Profile

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