At the heart of the 2015 Vespa GTS SuperSport scooter motorcycle, Vespa features a 278 cc (17 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 22 HP (16.1 kW) at 7,750 rpm while maximum torque reaches 22.3 Nm (16.4 lb-ft) at 5,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 79.1 HP per liter and a 2,750 rpm working window between peak torque (5,000 rpm) and peak power (7,750 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the GTS SuperSport measures 158 kg (348 lbs) dry, translating to a power-to-weight ratio of 0.14 HP/kg (7.18 kg per horsepower). Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,369 mm (53.9 in) wheelbase engineered for quick, flickable steering geometry. The 9.5-liter (2.5 US gal) fuel tank paired with a rated consumption of 3.36 L/100 km provides an estimated theoretical range of roughly 283 km (176 miles) between fill-ups, while factory top speed is listed at 137 km/h (85 mph).
Within MotoLibrary's Vespa archive, this model family spans 2 indexed model years from 2010 to 2015, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
79.1 HP/L
Power-to-Weight
0.14 HP/kg (7.18 kg/HP)
Power Band Window
5,000–7,750 rpm
Theoretical Range
~283 km (176 mi)
Engine
Displacement278.0 ccm (16.96 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsQuasar engine
Power22.0 HP (16.1 kW)) @ 7750 RPM
Torque22.3 Nm (2.3 kgf-m or 16.4 ft.lbs) @ 5000 RPM
Bore x Stroke75.0 x 63.0 mm (3.0 x 2.5 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionECU
LubricationWet sump, chain-driven lobe pump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic dry centrifugal clutch with vibration dampers
Performance
Top Speed136.8 km/h (85.0 mph)
Fuel Consumption3.36 litres/100 km (29.8 km/l or 70.01 mpg)
Greenhouse Gases78.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Emission DetailsCatalyzed. Euro 3.
Chassis
Frame TypeLoad-bearing sheet steel chassis
Front SuspensionSingle arm, dual chamber hydraulic shock absorber with coaxial spring
Rear SuspensionTwo dual effect shock absorbers with adjustable preload
Wheelbase1369 mm (53.9 inches)
Wheels & Brakes
Front Tyre120/70-12
Rear Tyre130/70-12
Front BrakesSingle disc. ABS
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc. ABS
Rear Brake Ø220 mm (8.7 inches)
WheelsDie-cast aluminium alloy
Dimensions & Weight
Dry Weight158.0 kg (348.3 pounds)
Power/Weight0.1392 HP/kg
Seat Height790 mm (31.1 inches) If adjustable, lowest setting.
Overall Length1930 mm (76.0 inches)
Overall Width755 mm (29.7 inches)
Fuel Capacity9.50 litres (2.51 US gallons)
Other
StarterElectric
Color OptionsBlack/orange
InstrumentsDigital display and trip odometers
Warranty2 years unlimited mileage, with 1 years roadside service
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.
