2012 Vespa S 50 4V Technical Analysis & Specification Breakdown
Built around Vespa's scooter motorcycle platform, the 2012 Vespa S 50 4V pairs a 49.4 cc (3 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 4.3 HP (3.1 kW) at 8,250 rpm while maximum torque reaches 3.5 Nm (2.6 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox. Internal engine geometry specifies a bore and stroke of 39.0 x 41.8 mm (1.5 x 1.6 inches).
On the scales, the S 50 4V measures 96 kg (212 lbs) dry. Rider ergonomics and chassis geometry center around a 775 mm (30.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,295 mm (51 in) wheelbase engineered for quick, flickable steering geometry. The 8.6-liter (2.3 US gal) fuel tank paired with a rated consumption of 2.69 L/100 km provides an estimated theoretical range of roughly 320 km (199 miles) between fill-ups, while factory top speed is listed at 63 km/h (39 mph).
Within MotoLibrary's Vespa archive, this model family spans 3 indexed model years from 2011 to 2013, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power Band Window
6,500–8,250 rpm
Theoretical Range
~320 km (199 mi)
Engine
Displacement49.4 ccm (3.01 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsHi-per 4
Power4.3 HP (3.1 kW)) @ 8250 RPM
Torque3.5 Nm (0.4 kgf-m or 2.6 ft.lbs) @ 6500 RPM
Bore x Stroke39.0 x 41.8 mm (1.5 x 1.6 inches)
Valves/Cylinder4
Fuel SystemCarburettor
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionElectronic
LubricationWet sump, chain-driven lobe pump
CoolingAir
Transmission
GearboxAutomatic
ClutchAutomatic dry centrifuge with damper buffers
DrivelineCVT transformer with torque assistance
Performance
Top Speed62.8 km/h (39.0 mph)
Fuel Consumption2.69 litres/100 km (37.2 km/l or 87.44 mpg)
Greenhouse Gases62.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Emission DetailsEPA and CARB
Chassis
Frame TypeLoad-bearing sheet steel chassis
Front SuspensionSingle arm link with coil spring
Rear SuspensionCoil spring with dual effect shock absorber
Wheelbase1295 mm (51.0 inches)
Wheels & Brakes
Front Tyre110/70-11
Rear Tyre120/70-10
Front BrakesSingle disc
Front Brake Ø200 mm (7.9 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø110 mm (4.3 inches)
Dimensions & Weight
Dry Weight96.0 kg (211.6 pounds)
Power/Weight0.0447 HP/kg
Seat Height775 mm (30.5 inches) If adjustable, lowest setting.
Overall Length1755 mm (69.1 inches)
Overall Width740 mm (29.1 inches)
Fuel Capacity8.60 litres (2.27 US gallons)
Other
StarterElectric & kick
Color OptionsBlack, Orange, Blue, Blue/White, White/Red, Dragon Red
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.
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.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
