ZRX 1200 R

2004 Kawasaki ZRX 1200 R Technical Analysis & Specification Breakdown

Engineered by Kawasaki for the naked motorcycle segment, the 2004 Kawasaki ZRX 1200 R utilizes a 1164 cc (71 cu in) liquid-cooled in-line four, four-stroke layout. In factory specification, peak output is rated at 122 HP (89.1 kW) at 10,000 rpm while maximum torque reaches 112 Nm (82.6 lb-ft), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 104.8 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 ZRX 1200 R measures 223 kg (492 lbs) dry, translating to a power-to-weight ratio of 0.55 HP/kg (1.83 kg per horsepower). Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,460 mm (57.5 in) wheelbase engineered for balanced agility and highway composure. The 19-liter (5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 230 km/h (143 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 4 indexed model years from 2001 to 2005, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.