Ninja ZX-6R Performance

2025 Kawasaki Ninja ZX-6R Performance Technical Analysis & Specification Breakdown

Engineered by Kawasaki for the sport motorcycle segment, the 2025 Kawasaki Ninja ZX-6R Performance relies on a 636 cc (38.8 cu in) liquid-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 126.9 HP (92.6 kW) at 13,000 rpm while maximum torque reaches 69 Nm (50.9 lb-ft) at 10,800 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 199.5 HP per liter and a 2,200 rpm working window between peak torque (10,800 rpm) and peak power (13,000 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the Ninja ZX-6R Performance measures 198 kg (437 lbs) wet (curb), translating to a power-to-weight ratio of 0.64 HP/kg (1.56 kg per horsepower). Rider ergonomics and chassis geometry center around a 830 mm (32.7 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,400 mm (55.1 in) wheelbase engineered for quick, flickable steering geometry. The 17-liter (4.5 US gal) fuel tank paired with a rated consumption of 6.1 L/100 km provides an estimated theoretical range of roughly 279 km (173 miles) between fill-ups.

Within MotoLibrary's Kawasaki archive, this model family spans 3 indexed model years from 2012 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.