At the heart of the 2004 Hyosung GT 650 Comet sport motorcycle, Hyosung utilizes a 647 cc (39.5 cu in) liquid-cooled v2, four-stroke layout. In factory specification, peak output is rated at 79 HP (57.7 kW) at 9,000 rpm while maximum torque reaches 68.1 Nm (50.2 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 122.1 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 reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the GT 650 Comet measures 240 kg (529 lbs) dry, translating to a power-to-weight ratio of 0.33 HP/kg (3.04 kg per horsepower). Rider ergonomics and chassis geometry center around 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
122.1 HP/L
Power-to-Weight
0.33 HP/kg (3.04 kg/HP)
Power Band Window
7,500–9,000 rpm
Engine
Displacement647.0 ccm (39.48 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Power79.0 HP (57.7 kW)) @ 9000 RPM
Torque68.1 Nm (6.9 kgf-m or 50.2 ft.lbs) @ 7500 RPM
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.
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.
