At the heart of the 2020 Vento Thunderstar 250 Custom allround motorcycle, Vento utilizes a 250 cc (15.3 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 17 HP (12.4 kW), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 68 HP per liter, 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 250 Custom measures 115 kg (254 lbs) wet (curb), translating to a power-to-weight ratio of 0.15 HP/kg (6.76 kg per horsepower). Rider ergonomics and chassis geometry center around a 740 mm (29.1 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops. The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
68 HP/L
Power-to-Weight
0.15 HP/kg (6.76 kg/HP)
Standover Height
740 mm (29.1 in)
Engine
Displacement250.0 ccm (15.26 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power17.0 HP (12.4 kW))
Fuel SystemCarburettor
IgnitionCDI
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
ExhaustDual black
Chassis
Frame TypeSteel
Front SuspensionHydraulic telescopic fork
Rear SuspensionDual shocks
Wheels & Brakes
Front Tyre90/90-R18
Rear Tyre130/80-R17
Front BrakesSingle disc. Hydraulic
Rear BrakesSingle disc. Hydraulic
WheelsWire spoked
Dimensions & Weight
Weight incl.115.0 kg (253.5 pounds)
Seat Height740 mm (29.1 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.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
