Positioned in Keeway's scooter motorcycle lineup, the 2009 Keeway F-Act Nkd 50 pairs a 49.3 cc (3 cu in) air-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 3 HP (2.2 kW) at 7,000 rpm while maximum torque reaches 3.4 Nm (2.5 lb-ft) at 5,700 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 40.3 x 39.0 mm (1.6 x 1.5 inches) with a 7.2:1 compression ratio.
On the scales, the F-Act Nkd 50 measures 93 kg (205 lbs) dry. Rider ergonomics and chassis geometry center around a 1,270 mm (50 in) wheelbase engineered for quick, flickable steering geometry.
Within MotoLibrary's Keeway archive, this model family spans 2 indexed model years from 2009 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power Band Window
5,700–7,000 rpm
Engine
Displacement49.3 ccm (3.01 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power3.0 HP (2.2 kW)) @ 7000 RPM
Torque3.4 Nm (0.3 kgf-m or 2.5 ft.lbs) @ 5700 RPM
Compression7.2:1
Bore x Stroke40.3 x 39.0 mm (1.6 x 1.5 inches)
Fuel SystemCarburettor
Fuel ControlSingle Overhead Cams (SOHC)
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic
Performance
Top Speed45.0 km/h (28.0 mph)
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.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
