GPZ 500 S

2004 Kawasaki GPZ 500 S Technical Analysis & Specification Breakdown

At the heart of the 2004 Kawasaki GPZ 500 S sport touring motorcycle, Kawasaki pairs a 498 cc (30.4 cu in) liquid-cooled twin, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 60 HP (43.8 kW) at 9,800 rpm while maximum torque reaches 46.1 Nm (34 lb-ft) at 8,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 120.5 HP per liter and a 1,300 rpm working window between peak torque (8,500 rpm) and peak power (9,800 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 GPZ 500 S measures 178 kg (392 lbs) dry, translating to a power-to-weight ratio of 0.34 HP/kg (2.97 kg per horsepower). The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Kawasaki archive, this model family spans 17 indexed model years from 1987 to 2004, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.