Sport Tourers
2008Hyosung GT650S
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The 2008 Hyosung GT650S is a sport-touring middleweight powered by a 674cc V-twin engine producing 78 horsepower, making it ideal for riders seeking an affordable entry into sport touring. Known for its balanced handling and practical ergonomics, it combines lightweight agility with touring capability, appealing to both commuters and weekend adventurers seeking value-oriented performance.
- Capacity
- 674.0 ccm
- Engine
- V-Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 190.0 kg
- Seat height
- 780 mm
- Power
- 78.0 HP (57.4 kW)
What’s new for the 2008 Hyosung GT650S
vs the 2006| Spec | 2006 | 2008 |
|---|---|---|
| Engine capacity | 647.0 ccm (39.48 cubic inches) | 674.0 ccm (41.13 cubic inches) |
| Power | 76.4 HP (56.2 kW) | 78.0 HP (57.4 kW) |
| Torque | 68.0 Nm (6.9 kgf-m or 50.2 ft.lbs) | not listed |
| Top speed | 210.0 km/h (130.5 mph) | not listed |
| Dry weight | 215.0 kg (474.0 pounds) | 190.0 kg (418.9 pounds) |
| Fuel capacity | 16.00 litres (4.23 US gallons) | 17.00 litres (4.49 US gallons) |
| Front suspension | — | 41mm USD Forks |
| Rear suspension | — | Mono Shock, Pre-Load Adjustable |
| Wheelbase | — | 1440 mm (56.7 inches) |
| Cooling | — | Oil & air |
| Compression | 11.4:1 | not listed |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A versatile sport-touring V-twin built for mixing weekend backroad rides with reasonably comfortable longer journeys.
- Built for
- Delivers a torquey, characterful V-twin growl with sporty handling cues like an upside-down fork and twin front discs, without being a full-on racer.
- Not ideal for
- Not the right choice for off-road adventures, novice riders wanting a light learner bike, or those chasing outright superbike performance.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 674.0 ccm
- Power
- 78.0 HP (57.4 kW)
- EPA CO Emissions
- 10.3 CO g/km
- Engine type
- V-Twin, four-stroke
- Power/weight ratio
- 0.4105 HP/kg (dry)
- Bore x stroke
- 81.5 x 62.0 mm
- Cooling system
- Oil & air
- Fuel system
- Carburettor
- Starting
- Electric
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet Multi Plate
Dimensions & weight
- Wheelbase
- 1440 mm
- Overall length
- 2060 mm
- Overall height
- 1059 mm
- Seat height
- 780 mm
- Dry weight
- 190.0 kg
- Fuel capacity
- 17.00 litres
- Ground clearance
- 150 mm
Chassis & suspension
- Frame
- Dual Lateral Oval Bar
- Front suspension
- 41mm USD Forks
- Rear suspension
- Mono Shock, Pre-Load Adjustable
Brakes & wheels
- Front brakes
- Double disc
- Rear brakes
- Single disc
- Front tyre
- 120/60-17
- Rear tyre
- 160/60-17
Other
- Color options
- Yellow, red, silver
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2005 | 2006 | 2008 | 2009 | 2010 | 2011 |
|---|---|---|---|---|---|---|
| Capacity | 647 cc | 647 cc | 674 cc | 674 cc | 674 cc | 647 cc |
| Dry weight | 189 kg | 215 kg | 190 kg | 190 kg | 190 kg | 189 kg |
| Seat height | 831 mm | 780 mm | 780 mm | 780 mm | 780 mm | 831 mm |
| Fuel capacity | 17 L | 16 L | 17 L | 17 L | 17 L | 17 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Hyosung GT650S?
The 2008 Hyosung GT650S has a Capacity of 674.0 ccm (41.13 cubic inches).
What engine power does the Hyosung GT650S have?
The 2008 Hyosung GT650S has a Power of 78.0 HP (57.4 kW).
How many gears does the Hyosung GT650S have?
The 2008 Hyosung GT650S has a Gearbox of 6-speed.
How much does the Hyosung GT650S weigh?
The 2008 Hyosung GT650S has a Dry weight of 190.0 kg (418.9 pounds).
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