2021 Kawasaki Ninja 400 ABS [Model Overview]


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Nov 11, 2011
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The 2021 Kawasaki Ninja 400 ABS: Team Greens Tanto Sword​


The 2021 Kawasaki Ninja 400 ABS is the Tanto Sword in the Ninja family. Japanese-made, small, light, and razor-sharp the 399cc Ninja more than lives up to the family name.

Many consider the Ninja 400 to be an entry-level motorcycle, and that is a role it fills well in the 2021 Kawasaki lineup, but this a very satisfying bike for a wide range of skill levels. The overall design makes for a nimble and very efficient urban ripper, the power delivery is smooth and the riding position just right to hone your cornering skills. The ABS and slipper clutch are very welcome technology for all riders.

The same traits that make the Ninja 400 a fun daily ride also translate to the track. The great handling and lower power level become an excellent platform to learn to carry your speed, ride smoothly, corner perfectly, and at a very reasonable price tag.

Kawasaki offers the choice of KRT graphics for a small upcharge, otherwise, you have three color choices. Entry-level? For sure it is perfect for new riders, but don’t be shocked when you never want to sell it.

Colors for 2021 include: Metallic Spark Black, Pearl Nightshade Teal / Metallic Spark Black, Metallic Graphite Gray / Metallic Magnetic Dark Gray, Passion Red, KRT Graphics

The 2021 Kawasaki Ninja 400 ABS starts at $4,999 USD / $6,399 CAD.

On this page: we’ve curated specs, features, news, photos/videos, etc. so you can read up on the new 2021 Kawasaki Ninja 400 ABS in one place.

2021 Kawasaki Ninja 400 ABS

Model Overview​

General Info​

  • Price: $4,999 USD / $6,399 CAN
  • Key Features:
    • ABS Brakes
    • Back-torque limiting Slipper clutch
    • Assist And Slipper Clutch
    • New Lightweight Trellis Frame

Main Specs​

  • Engine: 399cc, liquid-cooled, 4-stroke, DOHC 8-valve parallel twin
  • Power: 33.56 kW (45 hp) @ 10,000 RPM
  • Torque: 28.0 lb-ft (38 NM) @ 8,000 RPM
  • Wet Weight: 166 kg (366 lb)
  • Seat Height: 785 mm (30.9 in)


  • KTM RC390
  • Suzuki GSX250R
  • Yamaha YZF-R3

2021 Kawasaki Ninja 400 ABS

2021 Kawasaki Ninja 400 ABS Specifications​


Engine399cc, liquid-cooled, 4-stroke, DOHC 8-valve parallel twin
Power45 hp
Bore x Stroke70.0 x 51.8mm
Compression Ratio
Fuel SystemDFI® with dual 32mm throttle bodies


Final DriveSealed chain


Suspension Front41mm hydraulic telescopic fork/4.7 in
Suspension RearHorizontal back-link with adjustable spring preload/5.1 in
Brakes FrontSingle 310mm petal-type disc with 2-piston calipers and ABS
Brakes Rear
Single 220mm petal-type disc with single-piston caliper and ABS
Tires Front110/70-17
Tires Rear150/70-17
Fuel Tank Capacity3.7
Pearl Nightshade Teal/Metallic Spark Black


IgnitionTCBI w/digital advance
Spark Plugs
Tail LightLED


Overall Length78.3 in
Overall Width28 in
Overall Height44.1 in
Wheelbase53.9 in
Ground Clearance5.5 in
Seat Height30.9 in
Curb Weight368.2 lb


Warranty12 months
Kawasaki Protection Plus12 / 24 / 36 / 48 months

2021 Kawasaki Ninja 400 ABS

2021 Kawasaki Ninja 400 ABS Features​

Assist & Slipper Clutch​

Based on feedback from racing activities, the Assist & Slipper Clutch uses two types of cams (an assist cam and a slipper cam) to either drive the clutch hub and operating plate together or apart.
Under normal operation, the assist cam functions as a self-servo mechanism, pulling the clutch hub and operating plate together to compress the clutch plates. This allows the total clutch spring load to be reduced, resulting in a lighter clutch lever feel when operating the clutch.
When excessive engine braking occurs – as a result of quick downshifts (or an accidental downshift) – the slipper cam comes into play, forcing the clutch hub and operating plate apart. This relieves pressure on the clutch plates to reduce back-torque and helps prevent the rear tire from hopping and skidding. This race-style function is particularly useful when sport or track riding.

Economical Riding Indicator​

Using high-precision electronic control for engine management, Kawasaki models can achieve a high level of fuel efficiency. However, fuel consumption is greatly affected by throttle use, gear selection, and other elements under the rider’s control. The Economical Riding Indicator is a function that indicates when current riding conditions are consuming a low amount of fuel. The system continuously monitors fuel consumption, regardless of vehicle speed, engine speed, throttle position and other riding conditions. When fuel consumption is low for a given speed (i.e. fuel efficiency is high), an “ECO” mark appears on the instrument panel’s LCD screen. By riding so that the “ECO” mark remains on, fuel consumption can be reduced.

While effective vehicle speed and engine speed may vary by model, paying attention to conditions that cause the “ECO” mark to appear can help riders improve their fuel efficiency – a handy way to increase cruising range. Further, keeping fuel consumption low also helps minimize negative impact on the environment.


Kawasaki ABS systems use front and rear wheel sensors to constantly monitor wheel speed. Should information from either of the sensors indicate that wheel lock has occurred, the ABS ECU directs the pump in the ABS unit to modulate brake fluid pressure (releasing and reapplying pressure so that traction can be regained) until normal operation resumes. ABS offers rider reassurance that contributes to greater riding enjoyment.


Proper fit is key for rider comfort and control. However, the ideal fit varies from rider to rider, depending on their physical dimensions and riding style.

ERGO-FIT® is an interface system designed to allow riders to find their ideal riding position. Various points of the chassis interface (the handlebar, footpegs and seat, etc.) can be adjusted through a combination of interchangeable parts and parts with adjustable positions. This enables a wide range of riders to find a riding position that offers both comfort and control. Feeling at one with their machine, they will be able to experience how Kawasaki machines are fun and rewarding to ride.

*Adjustable parts and their range of adjustability vary by model.

2021 Kawasaki Ninja 400 ABS Photos​

2021 Kawasaki Ninja 400 ABS

2021 Kawasaki Ninja 400 ABS

2021 Kawasaki Ninja 400 ABS
2021 Kawasaki Ninja 400 ABS

2021 Kawasaki Ninja 400 ABS Videos​


Kawasaki Official Websites​

Social Media Links​

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