J300

2020 Kawasaki J300 Technical Analysis & Specification Breakdown

Engineered by Kawasaki for the scooter motorcycle segment, the 2020 Kawasaki J300 utilizes a 299 cc (18.2 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 27.2 HP (19.9 kW) at 8,000 rpm while maximum torque reaches 28.4 Nm (20.9 lb-ft) at 6,500 rpm, transferring power to the rear wheel through belt final drive. With a specific output of 91 HP per liter and a 1,500 rpm working window between peak torque (6,500 rpm) and peak power (8,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the J300 measures 191 kg (421 lbs) wet (curb), translating to a power-to-weight ratio of 0.14 HP/kg (7.02 kg per horsepower). Rider ergonomics and chassis geometry center around a 775 mm (30.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,555 mm (61.2 in) wheelbase engineered for planted straight-line stability. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Kawasaki archive, this model family spans 6 indexed model years from 2014 to 2020, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.