At the heart of the 2006 Piaggio Fly 50 4T scooter motorcycle, Piaggio pairs a 49.9 cc (3 cu in) single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 3.7 HP (2.7 kW) at 7,000 rpm. Internal engine geometry specifies a bore and stroke of 39.0 x 41.8 mm (1.5 x 1.6 inches) with a 10.7:1 compression ratio.
On the scales, the Fly 50 4T measures 100 kg (220 lbs) dry. Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,330 mm (52.4 in) wheelbase engineered for quick, flickable steering geometry. The 7.2-liter (1.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
785 mm (30.9 in)
Engine
Displacement49.9 ccm (3.04 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power3.7 HP (2.7 kW)) @ 7000 RPM
Compression10.7:1
Bore x Stroke39.0 x 41.8 mm (1.5 x 1.6 inches)
Valves/Cylinder2
Fuel SystemCarburettor
Chassis
Wheelbase1330 mm (52.4 inches)
Wheels & Brakes
Front BrakesSingle disc
Front Brake Ø200 mm (7.9 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø140 mm (5.5 inches)
Dimensions & Weight
Dry Weight100.0 kg (220.5 pounds)
Power/Weight0.0370 HP/kg
Seat Height785 mm (30.9 inches) If adjustable, lowest setting.
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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
