GPX 600 R (reduced effect #2)

1989 Kawasaki GPX 600 R (reduced effect #2) Technical Analysis & Specification Breakdown

At the heart of the 1989 Kawasaki GPX 600 R (reduced effect #2) sport touring motorcycle, Kawasaki pairs a 592 cc (36.1 cu in) liquid-cooled in-line four, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 27 HP (19.7 kW) at 8,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 45.6 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the GPX 600 R (reduced effect #2) measures 206 kg (454 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.63 kg per horsepower). The 19.5-liter (5.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 159 km/h (99 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 2 indexed model years from 1989 to 1990, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.