At the heart of the 1944 Ariel W-NG 350 allround motorcycle, Ariel utilizes a 346 cc (21.1 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 17 HP (12.4 kW) at 5,800 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 49.1 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the W-NG 350 measures 169 kg (373 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (9.94 kg per horsepower). The 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Ariel archive, this model family spans 4 indexed model years from 1940 to 1944, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
49.1 HP/L
Power-to-Weight
0.1 HP/kg (9.94 kg/HP)
Engine
Displacement346.0 ccm (21.11 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power17.0 HP (12.4 kW)) @ 5800 RPM
Bore x Stroke72.0 x 85.0 mm (2.8 x 3.3 inches)
Valves/Cylinder2
Fuel SystemCarburettor
Fuel ControlOverhead Valves (OHV)
IgnitionCoil
LubricationDry sump
CoolingAir
Transmission
Gearbox4-speed
Final DriveChain (final drive)
DrivelineBurman gear-box
Performance
Exhaust1-into-1 pipes
Chassis
Front SuspensionGrider fork
Rear SuspensionRigid
Wheels & Brakes
Front Tyre3.25-19
Rear Tyre3.25-19
Front BrakesExpanding brake (drum brake)
Rear BrakesExpanding brake (drum brake)
WheelsWire spoked
Dimensions & Weight
Dry Weight169.0 kg (372.6 pounds)
Power/Weight0.1008 HP/kg
Overall Length2130 mm (83.9 inches)
Fuel Capacity12.00 litres (3.17 US gallons)
Oil Capacity2.30 litres (2.43 US quarts)
Other
StarterKick
Color OptionsMilitary green, Black
Electrical6V battery.
Carrying CapacityRear rack
Notes
Based on the Ariel Red Hunter for the British military. Sidecar option.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
