Sportbikes
2023Kawasaki Ninja 400
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The 2023 Kawasaki Ninja 400 is an entry-level sport bike designed for new riders and commuters seeking an agile, fuel-efficient machine. Its 399cc liquid-cooled twin-cylinder engine delivers responsive performance with excellent manageability, while the assist and slipper clutch make it easy to control. Known for its nimble handling, affordable pricing, and low seat height, the Ninja 400 excels as a learner-friendly gateway into sportbike riding.
- Capacity
- 399.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 164.0 kg
- Seat height
- 785 mm
- Power
- 44.8 HP (33.0 kW)
What’s new for the 2023 Kawasaki Ninja 400
vs the 2022| Spec | 2022 | 2023 |
|---|---|---|
| Dry weight | 167.0 kg (368.2 pounds) | 164.0 kg (361.6 pounds) |
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 usEngine
- Capacity
- 399.0 ccm
- Power
- 44.8 HP (33.0 kW)
- CO2 Emissions
- 81 CO2 g/km
- EPA Certificate No.
- PKAXC.399AAB-005
- EPA Est. Fuel Consumption
- 3.45 L/100km (811.5 mpg)
- EPA CO Emissions
- 3.6 CO g/km
- Engine type
- Parallel Twin, four-stroke
- Power/weight ratio
- 0.2732 HP/kg
- Bore x stroke
- 70.0 x 51.8 mm
- Compression
- 11.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCBI w/digital advance
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Forced lubrication, wet sump
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Assist and Slipper Clutch
Performance
- 0-60 mph
- 4.63 seconds
- 0-100 km/h (0-62 mph)
- 5.30 seconds
Dimensions & weight
- Wheelbase
- 1369 mm
- Overall length
- 1989 mm
- Overall width
- 711 mm
- Overall height
- 1120 mm
- Seat height
- 785 mm
- Dry weight
- 164.0 kg
- Wet weight
- 168.0 kg
- Fuel capacity
- 3.70 litres
- Ground clearance
- 140 mm
- Oil capacity
- 2.30 litres
Chassis & suspension
- Frame
- Trellis, high-tensile steel
- Front suspension
- 41mm hydraulic telescopic fork
- Rear suspension
- Horizontal back-link with adjustable spring preload
- Front wheel travel
- 119 mm
- Rear wheel travel
- 130 mm
- Rake (fork angle)
- 24.7°
- Trail
- 91 mm
Brakes & wheels
- Front brakes
- Single disc. Single petal-type disc with 2-piston calipers. Optional ABS.
- Front brakes diameter
- 310 mm
- Rear brakes
- Single disc. Single petal-type disc with single-piston caliper. Optional ABS.
- Rear brakes diameter
- 220 mm
- ABS
- Optional
- Front tyre
- 110/70-17
- Rear tyre
- 150/70-17
Other
- Color options
- Metallic Carbon Gray/Metallic Matte Carbon Gray, Metallic Magnetic Dark Gray/Metallic Matte Twilight Blue, Pearl Blizzard White/Metallic Carbon Gray
- Warranty
- 12
- Comments
- Small windscreen. Economical Riding Indicator.
- Fuel Tank Material
- M
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 | 2019 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|
| Capacity | 399.00 ccm (24.35 cubic inches) | 399.00 ccm (24.35 cubic inches) | 399.0 ccm (24.35 cubic inches) | 399.0 ccm (24.35 cubic inches) | 399.0 ccm (24.35 cubic inches) | 399.0 ccm (24.35 cubic inches) |
| Dry weight | — | — | — | 167.0 kg (368.2 pounds) | 164.0 kg (361.6 pounds) | 164.0 kg (361.6 pounds) |
| Seat height | 805 mm (31.7 inches) | 785 mm (30.9 inches) | 785 mm (30.9 inches) | 785 mm (30.9 inches) | 785 mm (30.9 inches) | 785 mm (30.9 inches) |
| Fuel capacity | 15.00 litres (3.96 gallons) | 15.00 litres (3.96 gallons) | 14.00 litres (3.70 US gallons) | 3.70 litres (0.98 US gallons) | 3.70 litres (0.98 US gallons) | 3.70 litres (0.98 US gallons) |
| Color options | Green/black, red/black | Metallic Carbon Gray | Pearl Storm Grey/Metallic Magnetic Dark Grey | Metallic Matte Twilight Blue/Metallic Graphite Gray, Metallic Carbon Gray/Metallic Flat Spark Black | Metallic Carbon Gray/Metallic Matte Carbon Gray, Metallic Magnetic Dark Gray/Metallic Matte Twilight Blue, Pearl Blizzard White/Metallic Carbon Gray | Metallic Carbon Gray/Metallic Matte Carbon Gray, Metallic Magnetic Dark Gray/Metallic Matte Twilight Blue, Pearl Blizzard White/Metallic Carbon Gray |
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 2023 Kawasaki Ninja 400 has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Kawasaki Ninja 400 have?
The 2023 Kawasaki Ninja 400 has a Power of 44.8 HP (33.0 kW).
How many gears does the Kawasaki Ninja 400 have?
The 2023 Kawasaki Ninja 400 has a Gearbox of 6-speed.
How much does the Kawasaki Ninja 400 weigh?
The 2023 Kawasaki Ninja 400 has a Dry weight of 164.0 kg (361.6 pounds).
Shop this bike
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The 2023 Kawasaki Ninja 400 is a powerful and sleek sportbike that offers a thrilling riding experience. With a 399cc parallel-twin engine, this bike delivers impressive performance and acceleration. The lightweight chassis and responsive handling make it easy to maneuver through tight turns and straightaways. The stylish design and aggressive stance of the Ninja 400 make it a standout choice for riders looking for a visually striking bike. Whether you're a seasoned rider or a beginner, the Ninja 400 offers plenty of power and excitement for the road.
Overall, the 2023 Kawasaki Ninja 400 is a top-notch sportbike that delivers impressive performance and stylish design. From its powerful engine to its agile handling, this bike is a thrill to ride. Whether you're hitting the open road or cruising around town, the Ninja 400 offers an exhilarating experience for riders of all levels. If you're in the market for a sportbike that balances power and style, the Ninja 400 is definitely worth considering.
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