GT 650 R

2006 Hyosung GT 650 R Technical Analysis & Specification Breakdown

Built around Hyosung's sport motorcycle platform, the 2006 Hyosung GT 650 R utilizes a 647 cc (39.5 cu in) v2, four-stroke layout. In factory specification, peak output is rated at 76.4 HP (55.8 kW) at 9,000 rpm while maximum torque reaches 68 Nm (50.2 lb-ft) at 7,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 118.1 HP per liter and a 2,000 rpm working window between peak torque (7,000 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 R measures 208 kg (459 lbs) dry, translating to a power-to-weight ratio of 0.37 HP/kg (2.72 kg per horsepower). Rider ergonomics and chassis geometry center around a 780 mm (30.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Hyosung archive, this model family spans 2 indexed model years from 2005 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.