Sportbikes
2020Kawasaki Ninja 400
50 fields on record
The 2020 Kawasaki Ninja 400 is a popular lightweight sports bike for newer riders and track-day beginners. Its liquid-cooled 399cc parallel twin makes 44 hp at 9,500 rpm and 38 Nm through a six-speed gearbox. A 785 mm seat, 168 kg wet weight and 14-litre tank make it easy and fun to ride.
- Capacity
- 399.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 167.0 kg
- Seat height
- 785 mm
- Power
- 44.0 HP (32.1 kW) @ 9500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A lightweight sport bike for spirited canyon rides, commuting, and entry-level track days rather than long-distance touring.
- Built for
- Nimble, approachable, and revvy parallel-twin sportbike that punches above its 399cc for grins without intimidating newer riders.
- Not ideal for
- Not for riders wanting big-bore highway punch, two-up touring range (tiny 3.7L tank), or any off-road use.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usRange and running costs
Worked out in your browser - nothing is sent to usBased on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 399.0 ccm
- Power
- 44.0 HP (32.1 kW) @ 9500 RPM
- CO2 Emissions
- 81 CO2 g/km
- EPA Certificate No.
- LKAXC.399AAB-014-R01
- EPA Est. Fuel Consumption
- 3.45 L/100km (68.2 US mpg)
- EPA CO Emissions
- 3.6 CO g/km
- Torque
- 38.0 Nm (3.9 kgf-m) @ 8000 RPM
- Engine type
- Parallel Twin, four-stroke
- Fuel consumption
- 4.20 litres/100 km (23.8 km/l)
- Power/weight ratio
- 0.2635 HP/kg (dry)
- Bore x stroke
- 70.0 x 51.7 mm
- Compression
- 11.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCBI with digital advance
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Forced lubrication, wet sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Assist and Slipper Clutch
Performance
- 0-60 mph
- 4.63 seconds
Dimensions & weight
- Wheelbase
- 1370 mm
- Overall length
- 1990 mm
- Overall width
- 710 mm
- Overall height
- 1120 mm
- Seat height
- 785 mm
- Dry weight
- 167.0 kg
- Wet weight
- 168.0 kg
- Fuel capacity
- 14.00 litres
- Ground clearance
- 140 mm
- Oil capacity
- 2.30 litres
Chassis & suspension
- Frame
- Trellis, high-tensile steel
- Front suspension
- Telescopic fork
- Rear suspension
- Bottom-link Uni-Trak®, swingarm adjustable preload
- Front wheel travel
- 125 mm
- Rear wheel travel
- 130 mm
- Rake (fork angle)
- 25.0°
- Trail
- 110 mm
Brakes & wheels
- Front brakes
- Single disc. Hydraulic. Two-piston calipers.
- Front brakes diameter
- 310 mm
- Rear brakes
- Single disc. Hydraulic. Two-piston calipers.
- Rear brakes diameter
- 220 mm
- Front tyre
- 110/70-17
- Rear tyre
- 150/60-17
Other
- Color options
- Pearl Storm Grey/Metallic Magnetic Dark Grey
- Fuel Tank Material
- Metal
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2014 | 2017 | 2020 | 2022 | 2027 |
|---|---|---|---|---|---|
| Capacity | 399 cc | 399 cc | 399 cc | 399 cc | 398 cc |
| Dry weight | 167 kg | — | 167 kg | 167 kg | — |
| Seat height | 805 mm | 785 mm | 785 mm | 785 mm | 785 mm |
| Fuel capacity | 15 L | 14 L | 14 L | 14 L | 14 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Kawasaki Ninja 400?
The 2020 Kawasaki Ninja 400 has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Kawasaki Ninja 400 have?
The 2020 Kawasaki Ninja 400 has a Power of 44.0 HP (32.1 kW) @ 9500 RPM.
How many gears does the Kawasaki Ninja 400 have?
The 2020 Kawasaki Ninja 400 has a Gearbox of 6-speed.
What is the torque of the Kawasaki Ninja 400?
The 2020 Kawasaki Ninja 400 has a Torque of 38.0 Nm (3.9 kgf-m or 28.0 ft.lbs) @ 8000 RPM.
How much does the Kawasaki Ninja 400 weigh?
The 2020 Kawasaki Ninja 400 has a Dry weight of 167.0 kg (368.2 pounds).
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