Sportbikes

2023Kawasaki Ninja 400 KRT

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The 2023 Kawasaki Ninja 400 KRT is an entry-level sport bike designed for new and novice riders seeking an accessible introduction to sportbike riding. Its lightweight 399cc parallel-twin engine delivers manageable power with modern features like assist and slipper clutch technology, making it ideal for learning smooth throttle control and cornering techniques. Known for its nimble handling and affordable accessibility, the Ninja 400 KRT remains the go-to choice for riders building foundational skills before stepping up to larger displacement machines.

Capacity: 399.0 ccm
Engine: Parallel Twin, four-stroke
Gearbox: 6-speed
Dry weight: 166.0 kg
Seat height: 785 mm
Power: 44.8 HP (33.0 kW)

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What’s new for the 2023 Kawasaki Ninja 400 KRT

vs the 2022

Spec	2022	2023
Torque	38.0 Nm (3.9 kgf-m or 28.0 ft.lbs) @ 8000 RPM	37.0 Nm (3.8 kgf-m or 27.3 ft.lbs) @ 8000 RPM
Front brakes	Single disc. Petal-type disc with 2-piston calipers. Optional ABS.	Single disc. Single petal-type disc with 2-piston calipers. ABS.
Rear brakes	Single disc. Petal-type disc with single-piston caliper. Optional ABS.	Single disc. Single petal-type disc with single-piston caliper. ABS.

Other years 2021 2022 2023 2024

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail10%

Cornering65%

City riding70%

Daily riding72%

Touring58%

Two-up55%

Track45%

Best for: Built as an approachable sport bike for mixed commuting, weekend twisty-road fun, and occasional longer rides rather than dedicated track use.
Built for: A friendly, torquey parallel twin with a trellis frame and slipper clutch gives confident, predictable handling that rewards smooth inputs over outright aggression.
Not ideal for: Not the right choice for riders seeking serious off-road capability or those wanting flagship superbike-level top-end power and track performance.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 785mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2023 Kawasaki Ninja 400 KRT, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 399.0 ccm
Power: 44.8 HP (33.0 kW)
Torque: 37.0 Nm (3.8 kgf-m) @ 8000 RPM
Engine type: Parallel Twin, four-stroke
Power/weight ratio: 0.2699 HP/kg (dry)
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
Lubrication system: Forced lubrication, wet sump

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Assist and Slipper Clutch

Dimensions & weight

Wheelbase: 1369 mm
Overall length: 1989 mm
Overall width: 711 mm
Overall height: 1120 mm
Seat height: 785 mm
Dry weight: 166.0 kg
Fuel capacity: 14.00 litres
Ground clearance: 140 mm

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. ABS.
Front brakes diameter: 310 mm
Rear brakes: Single disc. Single petal-type disc with single-piston caliper. ABS.
ABS: Yes
Front tyre: 110/70-17
Rear tyre: 150/70-17

Other

Color options: Lime Green/Ebony
Warranty: 12
Comments: Special KRT edition. Small windscreen. Economical Riding Indicator.

Specs last verified against published sources: October 2026.

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	2021	2022	2023	2024
Capacity	399 cc	399 cc	399 cc	399 cc
Dry weight	165 kg	165 kg	166 kg	165 kg
Seat height	785 mm	785 mm	785 mm	785 mm
Fuel capacity	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

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MotorcycleDB

The 2023 Kawasaki Ninja 400 KRT is a powerful and stylish choice for riders looking for a sleek and high-performance sport bike. With its vibrant Kawasaki Racing Team (KRT) graphics, this motorcycle stands out on the road and commands attention. Its 399cc parallel-twin engine delivers impressive acceleration and top speed, while the lightweight chassis and responsive handling make it a joy to ride on twisty roads or the track. The comfortable riding position and updated instrumentation add to the overall appeal of the Ninja 400 KRT, making it a well-rounded and exhilarating choice for experienced and novice riders alike.

In addition to its striking design and impressive performance, the 2023 Kawasaki Ninja 400 KRT boasts advanced features such as a slipper clutch, ABS brakes, and a digital fuel injection system for optimal power delivery and control. The high-quality components and attention to detail make this motorcycle a top contender in its class, providing an enjoyable and confidence-inspiring riding experience. Whether you're a seasoned sport bike enthusiast or a newcomer to the world of motorcycles, the Ninja 400 KRT is sure to impress with its blend of cutting-edge technology, sporty aesthetics, and thrilling performance capabilities.

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