Engineered by Vento for the custom - cruiser motorcycle segment, the 2012 Vento Thunderstar pairs a 150 cc (9.2 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 13.4 HP (9.8 kW) at 9,000 rpm while maximum torque reaches 8.1 Nm (6 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 89.3 HP per liter and a 1,500 rpm working window between peak torque (7,500 rpm) and peak power (9,000 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 Thunderstar measures 146 kg (322 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (10.9 kg per horsepower). Rider ergonomics and chassis geometry center around a 706 mm (27.8 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops. The 4.16-liter (1.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
89.3 HP/L
Power-to-Weight
0.09 HP/kg (10.9 kg/HP)
Power Band Window
7,500–9,000 rpm
Standover Height
706 mm (27.8 in)
Engine
Displacement150.0 ccm (9.15 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power13.4 HP (9.8 kW)) @ 9000 RPM
Torque8.1 Nm (0.8 kgf-m or 6.0 ft.lbs) @ 7500 RPM
Bore x Stroke62.0 x 49.5 mm (2.4 x 1.9 inches)
Fuel SystemCarburettor
IgnitionCDI
CoolingAir
Transmission
Gearbox5-speed
Chassis
Frame TypeSteel
Front SuspensionHydraulic fork
Rear SuspensionHydraulic shock
Wheels & Brakes
Front Tyre110/90-19
Rear Tyre130/90-15
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight146.0 kg (321.9 pounds)
Power/Weight0.0918 HP/kg
Seat Height706 mm (27.8 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.
