Engineered by Hyosung for the sport motorcycle segment, the 2009 Hyosung GT 250 EFI pairs a 249 cc (15.2 cu in) air-cooled v2, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 28.5 HP (20.8 kW) at 10,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 114.5 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the GT 250 EFI measures 155 kg (342 lbs) dry, translating to a power-to-weight ratio of 0.18 HP/kg (5.44 kg per horsepower). Rider ergonomics and chassis geometry center around a 795 mm (31.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,435 mm (56.5 in) wheelbase engineered for balanced agility and highway composure. The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
114.5 HP/L
Power-to-Weight
0.18 HP/kg (5.44 kg/HP)
Standover Height
795 mm (31.3 in)
Engine
Displacement249.0 ccm (15.19 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Power28.5 HP (20.8 kW)) @ 10000 RPM
Compression9.6:1
Valves/Cylinder4
Fuel SystemInjection. EFI
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingAir
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet Multi-Plate
Chassis
Frame TypePerimeter Double Cradle
Front Suspension41mm USD Forks
Rear SuspensionMono Shock, Pre-Load Adjustable
Wheelbase1435 mm (56.5 inches)
Ground Clearance180 mm (7.1 inches)
Wheels & Brakes
Front Tyre110/70-17
Rear Tyre150/70-17
Front BrakesDouble disc. 2-piston clipers
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight155.0 kg (341.7 pounds)
Power/Weight0.1839 HP/kg
Seat Height795 mm (31.3 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.
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.
