Built around Keeway's scooter motorcycle platform, the 2010 Keeway ARN 50 utilizes a 49 cc (3 cu in) single cylinder, two-stroke layout. In factory specification, peak output is rated at 3.9 HP (2.8 kW) at 6,250 rpm while maximum torque reaches 4.2 Nm (3.1 lb-ft) at 6,000 rpm, transferring power to the rear wheel through belt final drive. Internal engine geometry specifies a 6.9:1 compression ratio.
On the scales, the ARN 50 measures 110 kg (243 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 1,300 mm (51.2 in) wheelbase engineered for quick, flickable steering geometry. The 6-liter (1.6 US gal) fuel tank paired with a rated consumption of 2 L/100 km provides an estimated theoretical range of roughly 300 km (186 miles) between fill-ups.
Power Band Window
6,000–6,250 rpm
Theoretical Range
~300 km (186 mi)
Engine
Displacement49.0 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power3.9 HP (2.8 kW)) @ 6250 RPM
Torque4.2 Nm (0.4 kgf-m or 3.1 ft.lbs) @ 6000 RPM
Compression6.9:1
Fuel SystemCarburettor
IgnitionC.D.I.
Transmission
Final DriveBelt (final drive)
ClutchDry, centrifugal
Performance
Fuel Consumption2.00 litres/100 km (50.0 km/l or 117.61 mpg)
Greenhouse Gases46.4 CO2 g/km. (CO2 - Carbon dioxide emission)
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
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.
