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2007 Hyosung GT 650R Specifications

Sport • Specs last verified 13 July 2026

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2007 Hyosung GT 650R Overview

Hyosung GT 650R is a sport motorcycle, displacing 647 cc. Power comes from a Four stroke, 90° V twin, DOHC, 4 valve per cylinder engine, a compression ratio of 11.4:1. On the performance side, it delivers 76.4 hp @ 9000 rpm of peak power and 68 Nm @ 7500 rpm of torque. Top speed is factory-quoted at 203.8 km/h. On the road, the 2007 GT 650R tips the scales at 210 kg, carries a 17-litre fuel tank, offers a seat height of 780 mm and spans a 1435 mm wheelbase. That's roughly 15.4 kg heavier than the average sport motorcycle in our database. The full 2007 Hyosung GT 650R spec sheet below covers every technical detail, from suspension travel to tyre sizes.

2007 Hyosung GT 650R compared with other bikes in the Sport category

We checked the recorded figures for the 2007 Hyosung GT 650R against up to 1607 bikes in the Sport category in our database, counting each model once at the model year nearest to this one.

  • Only 262 of the other 1606 bikes in the Sport category have a lower seat height than the 780 mm of the GT 650R.
  • With 210 kg, the GT 650R has the joint 352nd heaviest wet weight of 1213 bikes in the Sport category, 8% above the category average of 194.6 kg.
  • Top speed of 204 km/h is lower than that of 592 of the other 879 bikes in the Sport category.
  • Narrowing the field to the 625 models within five model years of it, the seat height of 780 mm is lower than that of 527 of the other 624.

Versus the 2006 model

The figures we track are unchanged from the 2006 model: peak power, peak torque, wet weight, displacement, seat height and top speed all match.

2007 GT 650R - Pros & Cons

Strengths

  • Strong power output: With 76.4 hp @ 9000 rpm and 68 Nm @ 7500 rpm of torque on tap, the GT 650R is no slouch for its class.
  • Strong front braking: Stopping power up front is strong thanks to the disc setup, with plenty of room to upgrade further with braided lines.

Considerations

  • Carburetor fuelling: Expect to spend more time keeping the carbs in tune, especially after long storage periods or a change in altitude.
  • Chain final drive upkeep: Budget time for routine chain maintenance - it's cheap to replace but needs consistent attention to avoid premature sprocket wear.

Wear Points & Servicing Notes

Cooling system servicing

GT 650R's Liquid cooled setup is low-maintenance provided the coolant interval is kept - old, acidic coolant is the main cause of long-term corrosion in the water passages.

Carburetor maintenance

Carburetors on the GT 650R need periodic attention - pilot jets and float needles are the first parts to gum up after the bike sits, and the first thing to check if idle or throttle response degrades.

Brake disc and pad wear

Braking up front comes from 2x 300mm discs - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.

Suspension condition on used examples

The GT 650R's suspension runs 41mm Oil upside down forks at the front. The rear uses Swinging arm. Fork-seal condition and rear linkage play are the two things worth checking before buying used.

Final drive maintenance

The GT 650R uses chain final drive, which is cheap to replace but needs regular cleaning, lubrication and tension checks to get a full service life out of the sprockets.

Frame & chassis check

Built around a Steel, double pipe, the GT 650R's chassis is straightforward to inspect: look for corrosion, cracks or repair welds around stress points like the head-stock and swingarm mounts.

GT 650R - Buying & Maintenance Guide

What to check before buying

Before handing over money for a used 2007 Hyosung GT 650R with its 647 cc sport, cover the fundamentals: service book and oil change history, drivetrain wear, and any sign of oil weeping around the casings. This model runs chain final drive, so check chain slack and sprocket tooth profile specifically - a worn sprocket is a cheaper fix now than after it's chewed up the next chain. Now 19 years old, this sport is as likely to show age-related wear (perished rubber, seized fasteners, degraded seals) as mileage-related wear. Cold-starting it yourself tells you a lot - a healthy GT 650R should catch quickly and settle into a smooth idle.

Oil and filter changes

Nothing protects the GT 650R's 647 cc four stroke, 90° v twin, dohc, 4 valve per cylinder like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). With an 11.4:1 compression ratio, running the octane grade specified in the manual matters more than on a lower-compression engine. Match the viscosity grade to what the owner's manual specifies, not what's cheapest.

Carburetor upkeep

Deposits in the carbs are the usual culprit behind poor running on a stored GT 650R - strip and clean the float bowls before the first start. Pilot jets clog first and get overlooked most, so make a point of checking them.

2007 Hyosung GT 650R - Frequently Asked Questions

What engine does the 2007 Hyosung GT 650R have?
The 2007 Hyosung GT 650R uses a Four stroke, 90° V twin, DOHC, 4 valve per cylinder engine with 647 cc of displacement. It is liquid cooled.
What is the top speed of the 2007 Hyosung GT 650R?
The 2007 Hyosung GT 650R has a factory-quoted top speed of 203.8 km/h. Real-world speeds vary depending on rider weight, conditions and state of tune.
How much does the 2007 Hyosung GT 650R weigh?
The 2007 Hyosung GT 650R weighs 210 kg. This is the manufacturer's wet figure.
How much power does the 2007 Hyosung GT 650R make?
The 2007 Hyosung GT 650R produces 76.4 hp @ 9000 rpm of power and 68 Nm @ 7500 rpm of torque. These are peak figures.
What is the fuel tank capacity of the 2007 Hyosung GT 650R?
The 2007 Hyosung GT 650R has a 17-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 283-340 km between stops.
Is the 2007 Hyosung GT 650R suitable for shorter riders?
The 2007 Hyosung GT 650R has a seat height of 780 mm. This is a moderate seat height that suits a wide range of rider heights.
What brakes does the 2007 Hyosung GT 650R have?
The 2007 Hyosung GT 650R uses 2x 300mm discs at the front and single 230mm disc at the rear.
What tyre sizes does the 2007 Hyosung GT 650R use?
The 2007 Hyosung GT 650R runs 120/60 -17 front and 160/60 -17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2007 Hyosung GT 650R have?
The 2007 Hyosung GT 650R is fitted with a 6 Speed transmission.

Hyosung GT 650R Spec Evolution

The Hyosung GT 650R was produced across 5 model years (2006-2017). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification 2006 2008 2014 2016 2017
Max Power 76.4 hp / 58.8 kW @ 9000 rpm 76.4 hp / 58.8 kW @ 9000 rpm 80.2 hp / 59 kW @ 9000 rpm 80.2 hp / 59 kW @ 9000 rpm 80.2 hp / 59 kW @ 9000 rpm
Wet Weight 210 kg / 462 lbs 210 kg / 462 lbs 210 kg / 462 lbs 210 kg / 462 lbs 215 kg / 474 lbs
Seat Height 780 mm / 30.7 in 780 mm / 30.7 in 830mm / 32.6 in 830mm / 32.6 in 830mm / 32.6 in
Brakes - Front 2x 300mm discs 2x 300mm discs 2x 300mm discs 2 piston calipers 2x 300mm discs 2 piston calipers 2x 300mm discs 2 piston calipers
Wheelbase 1435 mm / 56.4 in 1435 mm / 56.4 in 1435 mm / 56.4 in 1435 mm / 56.4 in 1435 mm / 56.5 in
Brakes - Rear Single 230mm disc Single 230mm disc Single 230mm disc 2 piston caliper Single 230mm disc 2 piston caliper Single 230mm disc 2 piston caliper
Height 1125 mm / 44.2 in 1125 mm / 44.2 in 1090 mm / 42.9 in 1090 mm / 42.9 in 1132 mm / 44.6 in
Length 2060 mm / 81.1 in 2060 mm / 81.1 in 1090 mm / 42.9 in 1090 mm / 42.9 in 1132 mm / 44.6 in

Key Specifications

Engine

Four stroke, 90° V twin, DOHC, 4 valve per cylinder

Power

76.4 hp / 58.8 kW @ 9000 rpm

Torque

68 Nm / 6.93 kg-m @ 7500 rpm

Top Speed

203.8 km/h

Weight

210 kg / 462 lbs

Fuel Capacity

17 Litres / 3.1 US gal

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Full 2007 Hyosung GT 650R Specifications

Year 2007 - 08
Make Model Hyosung GT 650R
Seat Height 780 mm / 30.7 in
Wheelbase 1435 mm / 56.4 in
Height 1125 mm / 44.2 in
Length 2060 mm / 81.1 in
Width 740 mm / 29.1 in
Dry Weight 195 kg / 429 lbs
Fuel Capacity 17 Litres / 3.1 US gal
Wet Weight 210 kg / 462 lbs
Top Speed 203.8 km/h
Max Power 76.4 hp / 58.8 kW @ 9000 rpm
Max Torque 68 Nm / 6.93 kg-m @ 7500 rpm
Standing Start ¼ Mile 13.0 sec
Displacement 647 cc / 39.4 cu-in
Engine Detail Four stroke, 90° V twin, DOHC, 4 valve per cylinder
Bore x Stroke 81.5 x 62 mm
Compression Ratio 11.4:1
Cooling System Liquid cooled
Engine Oil Specification Semi-Synthetic, 10W/40
Fuel Induction 38 mm Carburettor
Ignition Digital CDI
Lubrication Wet sump
Spark Plug NGK, CR8E
Starter Electric
Clutch Wet, multiple discs, cable operated
Final Drive Chain
Transmission / Drive 6 Speed
Frame Type Steel, double pipe
Suspension - Front 41mm Oil upside down forks
Suspension - Rear Swinging arm
Wheel Travel - Front 120 mm / 4.7 in
Wheel Travel - Rear 100 mm / 3.9 in
Brakes - Front 2x 300mm discs
Brakes - Rear Single 230mm disc
Tyres - Front 120/60 -17
Tyres - Rear 160/60 -17

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.

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