Engineered by Vespa for the scooter motorcycle segment, the 2017 Vespa GTS 150 utilizes a 155.2 cc (9.5 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 11 HP (8 kW) at 8,500 rpm while maximum torque reaches 14 Nm (10.3 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 70.9 HP per liter and a 2,000 rpm working window between peak torque (6,500 rpm) and peak power (8,500 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 150 measures 160 kg (353 lbs) dry, translating to a power-to-weight ratio of 0.07 HP/kg (14.55 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. The 7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 103 km/h (64 mph).
Specific Output
70.9 HP/L
Power-to-Weight
0.07 HP/kg (14.55 kg/HP)
Power Band Window
6,500–8,500 rpm
Standover Height
790 mm (31.1 in)
Engine
Displacement155.2 ccm (9.47 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsLeader engine
Power11.0 HP (8.0 kW)) @ 8500 RPM
Torque14.0 Nm (1.4 kgf-m or 10.3 ft.lbs) @ 6500 RPM
Bore x Stroke58.0 x 58.7 mm (2.3 x 2.3 inches)
Valves/Cylinder4
Fuel SystemInjection. EFI
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionElectronic with variable advance
LubricationWet sump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic. Twist-and-go CVT with torque server
Performance
Top Speed103.0 km/h (64.0 mph)
Emission DetailsEuro 4
Chassis
Frame TypeSheet metal with welded reinforcements
Front SuspensionSingle arm suspension with coil spring and hydraulic shock absorber
Rear SuspensionDouble hydraulic shock absorbers with adjustable preload with 4 settings
Wheels & Brakes
Front Tyre120/70-12
Rear Tyre130/70-12
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Dry Weight160.0 kg (352.7 pounds)
Power/Weight0.0688 HP/kg
Seat Height790 mm (31.1 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.
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.
