At the heart of the 2019 Vespa GTS 300 Yacht Club scooter motorcycle, Vespa relies on a 278.3 cc (17 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 21.2 HP (15.5 kW) at 7,750 rpm while maximum torque reaches 22 Nm (16.2 lb-ft) at 5,000 rpm, transferring power to the rear wheel through belt final drive. With a specific output of 76.2 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.
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 1,375 mm (54.1 in) wheelbase engineered for quick, flickable steering geometry. The 8.5-liter (2.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
76.2 HP/L
Power Band Window
5,000–7,750 rpm
Standover Height
790 mm (31.1 in)
Engine
Displacement278.3 ccm (16.98 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power21.2 HP (15.5 kW)) @ 7750 RPM
Torque22.0 Nm (2.2 kgf-m or 16.2 ft.lbs) @ 5000 RPM
Bore x Stroke75.0 x 63.0 mm (3.0 x 2.5 inches)
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
CoolingLiquid
Transmission
Final DriveBelt (final drive)
Chassis
Frame TypeSheet metal body with welded reinforcements
Front SuspensionSingle arm with helical spring and hydraulic shock absorber
Rear SuspensionDouble hydraulic shock absorber with helical spring with preload adjustable in 4 positions
Wheelbase1375 mm (54.1 inches)
Wheels & Brakes
Front Tyre120/70-12
Rear Tyre130/70-12
Front BrakesSingle disc. ABS. Hydraulic.
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc. ABS. Hydraulic.
Rear Brake Ø220 mm (8.7 inches)
WheelsDie-cast aluminium alloy
Dimensions & Weight
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.
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.
