ZXR 400

1991 Kawasaki ZXR 400 Technical Analysis & Specification Breakdown

Built around Kawasaki's sport motorcycle platform, the 1991 Kawasaki ZXR 400 utilizes a 398 cc (24.3 cu in) liquid-cooled in-line four, four-stroke layout. In factory specification, peak output is rated at 65 HP (47.4 kW) at 13,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 163.3 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the ZXR 400 measures 186 kg (410 lbs) wet (curb), translating to a power-to-weight ratio of 0.35 HP/kg (2.86 kg per horsepower). The 16-liter (4.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 207 km/h (129 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 5 indexed model years from 1991 to 2003, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.