GPZ 600 R (reduced effect)

1988 Kawasaki GPZ 600 R (reduced effect) Technical Analysis & Specification Breakdown

Engineered by Kawasaki for the sport motorcycle segment, the 1988 Kawasaki GPZ 600 R (reduced effect) features a 592 cc (36.1 cu in) liquid-cooled in-line four, four-stroke configuration. In factory specification, peak output is rated at 50 HP (36.5 kW) at 10,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 84.5 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the GPZ 600 R (reduced effect) measures 217 kg (478 lbs) wet (curb), translating to a power-to-weight ratio of 0.23 HP/kg (4.34 kg per horsepower). The 18-liter (4.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 178 km/h (111 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 4 indexed model years from 1985 to 1988, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.