ER-5

1999 Kawasaki ER-5 Technical Analysis & Specification Breakdown

Engineered by Kawasaki for the naked motorcycle segment, the 1999 Kawasaki ER-5 features a 499 cc (30.5 cu in) liquid-cooled twin, four-stroke configuration. In factory specification, peak output is rated at 50 HP (36.5 kW) at 9,000 rpm while maximum torque reaches 45 Nm (33.2 lb-ft) at 7,200 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 100.2 HP per liter and a 1,800 rpm working window between peak torque (7,200 rpm) and peak power (9,000 rpm), 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 ER-5 measures 193 kg (425 lbs) wet (curb), translating to a power-to-weight ratio of 0.26 HP/kg (3.86 kg per horsepower). Rider ergonomics and chassis geometry center around a 780 mm (30.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,430 mm (56.3 in) wheelbase engineered for balanced agility and highway composure. The 16-liter (4.2 US gal) fuel tank paired with a rated consumption of 5.4 L/100 km provides an estimated theoretical range of roughly 296 km (184 miles) between fill-ups, while factory top speed is listed at 178 km/h (111 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 7 indexed model years from 1997 to 2006, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.