GPZ 305 Belt Drive

1989 Kawasaki GPZ 305 Belt Drive Technical Analysis & Specification Breakdown

Positioned in Kawasaki's sport touring motorcycle lineup, the 1989 Kawasaki GPZ 305 Belt Drive utilizes a 306 cc (18.7 cu in) air-cooled twin, four-stroke layout. In factory specification, peak output is rated at 34 HP (24.8 kW) at 10,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. With a specific output of 111.1 HP per liter, 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 305 Belt Drive measures 164 kg (362 lbs) wet (curb), translating to a power-to-weight ratio of 0.21 HP/kg (4.82 kg per horsepower). The 16.5-liter (4.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 152 km/h (94 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 7 indexed model years from 1984 to 1990, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.