NX 650 Dominator

1990 Honda NX 650 Dominator Technical Analysis & Specification Breakdown

Built around Honda's touring motorcycle platform, the 1990 Honda NX 650 Dominator pairs a 644 cc (39.3 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 44 HP (32.1 kW) at 6,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 68.3 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 NX 650 Dominator measures 178 kg (392 lbs) wet (curb), translating to a power-to-weight ratio of 0.25 HP/kg (4.05 kg per horsepower). The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 153 km/h (95 mph).

Within MotoLibrary's Honda archive, this model family spans 16 indexed model years from 1988 to 2003, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.