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Naked Motorcycles

2008Hyosung GT650

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The 2008 Hyosung GT650 is a middleweight naked bike that appeals to riders seeking an affordable, practical commuter with genuine performance credentials. Its liquid-cooled 647cc V-twin engine delivers responsive power suitable for both city riding and highway cruising. Known for excellent value and reliability, the GT650 remains a popular choice for budget-conscious enthusiasts and new riders transitioning to larger displacement bikes.

Capacity
647.0 ccm
Engine
V-Twin, four-stroke
Gearbox
6-speed
Dry weight
185.0 kg
Seat height
780 mm
Power
76.4 HP (57.0 kW) @ 9000 RPM
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2008 Hyosung GT650

vs the 2007
Spec20072008
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 180.0 kg (396.8 pounds) 185.0 kg (407.9 pounds)
Fuel capacity 16.00 litres (4.23 US gallons) 17.00 litres (4.49 US gallons)
Other years 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 53Agility 65Comfort 60Off-road 15Touring 45Road manners 78
Off-road & trail15%
Cornering72%
City riding68%
Daily riding70%
Touring42%
Two-up45%
Track55%
Best for
Designed as a fun, torquey street naked for spirited commuting and weekend backroad rides rather than outright racing or long-distance touring.
Built for
The 90-degree V-twin gives it a raw, torque-driven feel with strong low-to-mid RPM pull and a throaty exhaust note that feels more premium than its price suggests.
Not ideal for
Not the right choice for riders seeking off-road capability, plush long-haul touring comfort, or class-leading top-speed 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 us
At 780mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2008 Hyosung GT650, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine
Capacity
647.0 ccm
Power
76.4 HP (57.0 kW) @ 9000 RPM
EPA CO Emissions
10.3 CO g/km
Engine type
V-Twin, four-stroke
Power/weight ratio
0.4130 HP/kg (dry)
Bore x stroke
81.5 x 62.0 mm
Compression
11.6:1
Cooling system
Liquid
Fuel system
Carburettor
Starting
Electric
Aspiration
Naturally aspirated
Valves per cylinder
4
Lubrication system
Wet sump
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet, Multiplate
Dimensions & weight
Wheelbase
1435 mm
Overall length
2060 mm
Overall width
740 mm
Overall height
1090 mm
Seat height
780 mm
Dry weight
185.0 kg
Wet weight
208.2 kg
Fuel capacity
17.00 litres
Ground clearance
150 mm
Chassis & suspension
Front suspension
Telescopic
Rear suspension
Swing Arm
Front wheel travel
120 mm
Rake (fork angle)
25.0°
Trail
79 mm
Brakes & wheels
Front brakes
Double disc
Front brakes diameter
300 mm
Rear brakes
Single disc
Rear brakes diameter
230 mm
Front tyre
120/60-ZR17
Rear tyre
160/60-ZR17

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 20052008201120142017
Capacity 647 cc 647 cc 647 cc 650 cc 647 cc
Dry weight 208 kg 185 kg 191 kg 191 kg 170 kg
Seat height 780 mm 780 mm 831 mm 831 mm 830 mm
Fuel capacity 17 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.

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Common questions

What is the engine size of the Hyosung GT650?

The 2008 Hyosung GT650 has a Capacity of 647.0 ccm (39.48 cubic inches).

What engine power does the Hyosung GT650 have?

The 2008 Hyosung GT650 has a Power of 76.4 HP (57.0 kW) @ 9000 RPM.

How many gears does the Hyosung GT650 have?

The 2008 Hyosung GT650 has a Gearbox of 6-speed.

How much does the Hyosung GT650 weigh?

The 2008 Hyosung GT650 has a Dry weight of 185.0 kg (407.9 pounds).

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