Built around Keeway's scooter motorcycle platform, the 2008 Keeway Flash 50 utilizes a 49.3 cc (3 cu in) single cylinder, two-stroke layout. In factory specification, peak output is rated at 3.4 HP (2.5 kW) at 7,000 rpm while maximum torque reaches 3.9 Nm (2.9 lb-ft) at 7,000 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 6.9:1 compression ratio.
On the scales, the Flash 50 measures 81 kg (179 lbs) dry. Rider ergonomics and chassis geometry center around a 1,170 mm (46.1 in) wheelbase engineered for quick, flickable steering geometry. The 5-liter (1.3 US gal) fuel tank paired with a rated consumption of 2 L/100 km provides an estimated theoretical range of roughly 250 km (155 miles) between fill-ups, while factory top speed is listed at 45 km/h (28 mph).
Within MotoLibrary's Keeway archive, this model family spans 3 indexed model years from 2008 to 2010, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Theoretical Range
~250 km (155 mi)
Engine
Displacement49.3 ccm (3.01 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power3.4 HP (2.5 kW)) @ 7000 RPM
Torque3.9 Nm (0.4 kgf-m or 2.9 ft.lbs) @ 7000 RPM
Compression6.9:1
Bore x Stroke40.3 x 39.0 mm (1.6 x 1.5 inches)
Fuel SystemCarburettor
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.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
