At the heart of the 2020 Kawasaki Ninja 400 KRT Edition sport motorcycle, Kawasaki features a 399 cc (24.4 cu in) liquid-cooled twin, four-stroke configuration. In factory specification, peak output is rated at 44 HP (32.1 kW) at 9,500 rpm while maximum torque reaches 37 Nm (27.3 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 110.3 HP per liter and a 2,000 rpm working window between peak torque (7,500 rpm) and peak power (9,500 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 Ninja 400 KRT Edition measures 166 kg (366 lbs) wet (curb), translating to a power-to-weight ratio of 0.27 HP/kg (3.77 kg per horsepower). Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,405 mm (55.3 in) wheelbase engineered for quick, flickable steering geometry. The 14-liter (3.7 US gal) fuel tank paired with a rated consumption of 4.17 L/100 km provides an estimated theoretical range of roughly 336 km (209 miles) between fill-ups.
Within MotoLibrary's Kawasaki archive, this model family spans 3 indexed model years from 2018 to 2022, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
110.3 HP/L
Power-to-Weight
0.27 HP/kg (3.77 kg/HP)
Power Band Window
7,500–9,500 rpm
Theoretical Range
~336 km (209 mi)
Engine
Displacement399.0 ccm (24.35 cubic inches)
Engine TypeTwin, four-stroke
Power44.0 HP (32.1 kW)) @ 9500 RPM
Torque37.0 Nm (3.8 kgf-m or 27.3 ft.lbs) @ 7500 RPM
Compression11.5:1
Bore x Stroke70.0 x 51.8 mm (2.8 x 2.0 inches)
Valves/Cylinder2
Fuel SystemInjection. DFI® with 32mm throttle bodies
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionTCBI with digital advance
LubricationSemi-dry sump
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Performance
Fuel Consumption4.17 litres/100 km (24.0 km/l or 56.41 mpg)
Greenhouse Gases96.7 CO2 g/km. (CO2 - Carbon dioxide emission)
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
