All-New In-Line Four Engine. The new 399 cm3 liquid-cooled DOHC In-Line Four engine pushes technological boundaries to comfortably top the 400cc class*. Developed with know-how gained from other Ninja ZX models, the high-performance engine offers class-leading power and a revrange that extends beyond 15,000 min-1.
Review – Key Features – Features & Benefits – Specifications
2026 Kawasaki Ninja ZX-4RR ABS: AWAKEN YOUR SUPERSPORT.
Introducing the 2026 Kawasaki Ninja ZX-4RR ABS…
Into a category filled with 400cc sport models, Kawasaki introduces a revolutionary Supersport model. The Ninja ZX-4RR mounts a 400cc In-Line Four engine with class-leading performance in a compact chassis. On the track or on the street, experiencing the exhilaration of the Ninja ZX-4RR’s unprecedented power, thrilling high-rpm wail, and its sharp, nimble handing will surely awaken the dormant Supersport within you.
2026 Kawasaki Ninja ZX-4RR ABS Totalmotorcycle.com Key Features
- 399cc IN-LINE 4-CYLINDER DOHC ENGINE
- RAM AIR DUCT INTAKE SYSTEM
- WORLDSBK-INSPIRED CHASSIS
- ALL-LED LIGHTING
- KAWASAKI TRACTION CONTROL (KTRC)
- SMARTPHONE CONNECTIVITY VIA RIDEOLOGY THE APP MOTORCYCLE†
ADDITIONAL VEHICLE FEATURES:
- High-grade front fork with adjustable spring preload
- High-grade Showa BFRC lite rear shock
- Kawasaki Quick Shifter (KQS) (Dual-Direction)
AVAILABLE COLOURS
Lime Green
Metallic Matte Graphenesteel Gray / Metallic Spark Black
Pearl Robotic White/Metallic Spark Black
ABS
ABS (Anti-lock Brake System) ensures stable braking performance by preventing wheel lock during braking.
Horizontal Back-link Rear Suspension
Horizontal Back-link Rear Suspension arranges its shock unit horizontally, greatly contributing to efficient use of space and mass centralisation.
Electronic Throttle Valves
Electronic Throttle Valves allow the ECU to deliver the ideal amount of fuel and air to the engine.
KQS – Kawasaki Quick Shifter
KQS (Kawasaki Quick Shifter) enables clutchless shifting.
Assist & Slipper Clutch
Based on racing technology, the Assist & Slipper Clutch acts as both a back-torque limiter and a self-servo mechanism that enables a lighter clutch lever pull.
KTRC (3-mode)
3-Mode KTRC (Kawasaki TRaction Control), Kawasaki’s most advanced traction control system, offers a selection of modes to suit a variety of riding situations, from sport riding to touring.
Power Modes
Power Mode selection allows engine power delivery to be changed to suit the riding situation.
Economical Riding Indicator
The Economical Riding Indicator is a mark appearing on the instrument panel to indicate favourable fuel consumption, encouraging fuel efficient riding.
Smartphone Connectivity
Smartphone connectivity contributes to an enhanced motorcycling experience by enabling riders to connect to their motorcycle wirelessly.
KAWASAKI ANNOUNCES FALL RELEASE OF 2026 SPORT AND SUPERSPORT MOTORCYCLES
Kawasaki redefined the 400cc supersport category with the arrival of the Ninja® ZX™-4R ABS and Ninja® ZX™-4RR ABS motorcycles. This circuit-focused motorcycle combines real-world road enjoyment and track riding potential and provides the rider the satisfaction of being able to ride with confidence. The Ninja ZX-4R ABS boasts a powerful 399cc in-line four-cylinder engine that produces music to the ears with its high-performance audible signal – helping it stand out from the competition. Its lightweight trellis frame is compact and nimble for exciting cornering performance, while 290mm dual front disc brakes and a high-performance 37mm Showa SFF-BP front fork as well as horizontal back-link rear suspension have been fitted to ensure that the Ninja ZX-4R ABS breeds performance from the ground up. Other premium features include a 4.3” TFT color instrumentation with smartphone connectivity, integrated riding modes that link Kawasaki TRaction Control (KTRC) and Power Modes, and aggressive Ninja® ZX™ family styling that make it clear this is a high-performance supersport model. The Ninja ZX-4RR ABS takes performance even further with the addition of dual-direction Kawasaki Quick Shifter (KQS), a higher-grade Showa front fork with adjustable spring preload, and a Showa BFRC Lite rear shock. The Ninja ZX-4R ABS is painted in a Metallic Spark Black color scheme. The 2026 Ninja ZX-4RR ABS is offered in three color schemes, including Lime Green, Pearl Robotic White/Metallic Spark Black, and Metallic Matte Graphenesteel Gray/Metallic Spark Black.
2026 Kawasaki Ninja ZX-4RR ABS Totalmotorcycle.com Features and Benefits
High-revving Performance
With a redline beyond 15,000 rpm indicating its screaming potential, this engine features racing-inspired technology also found on the Ninja ZX-10R. The high revs deliver a distinctive, exhilarating engine sound characteristic of a high-performance Kawasaki In-Line Four.
Dual Front Disc Brakes
The ZX-4R’s two ø290 mm front brake discs and radialmount monobloc calipers provide sure stopping power, while also offering excellent braking feel to inspire confidence both on the track and on the street.
Premium Components and Features
Style meets substance with the Ninja ZX-4R’s high-class styling and high-grade package. Aggressive looks are complemented by premium features like TFT colour instrumentation providing clear information, integrated Riding Modes that link traction control and power modes for easy machine setup, and on the ZX-4RR a quick shifter for fast, simple gear changes.
All-LED Lighting
From its twin headlights to its Ninja ZX-10R-inspired taillight, all lighting on the Ninja ZX-4R is LED.
TFT Colour Instrumentation with Circuit Mode
The 4.3” all-digital TFT colour instrumentation with selectable display modes (Normal, Circuit) clearly displays the most pertinent information, whether on the street or on the track. Circuit Mode shows the gear position, lap times, and rpm above 10,000 more prominently.
Integrated Riding Modes
Four integrated riding modes (Sport, Road, Rain or Rider (manual)) make it simple to select a level of traction control and power mode to suit the current riding conditions.
Trellis Frame with Optimised Rigidity Balance
Designed using Kawasaki’s advanced dynamic rigidity analysis, this trellis frame made from high-tensile steel delivers the required balance of strength and chassis flex to achieve the Ninja ZX-4R’s nimble supersport-style handling.
Ergonomics for Control and Comfort
Naturally aggressive riding position (more forwardleaning than the Ninja 400’s, but still slightly relaxed) lets riders take advantage of the Ninja ZX-4R’s nimble handling. The fuel tank feels slim, promoting good contact with the bike, while the shape of the firm seat cushion facilitates rider weight shift during sport riding, and is comfortable for longer rides.
Class-Leading Engine Performance
Kawasaki takes 400cc engine performance to a new level, achieving an unprecedented 57 kW (77 PS) of power. The howl of the engine as it revs beyond 15,000 min-1 adds to rider exhilaration. A quick-revving nature and direct throttle response are complemented by a flexible character that offers strong low to mid-range torque for city riding, as well as screaming high-rpm power ideal for sport or track riding.
Dual-direction KQS
Allowing riders to take even greater advantage of the Ninja ZX-4R’s exhilarating engine character, the quick shifter enables clutchless upshifts and downshifts for seamless acceleration and easy deceleration.
Ram Air Intake
Complementing the centrally positioned Ram Air intake, the side Ram Air duct, designed with feedback from the Ninja H2, routes air to the air cleaner box and contributes to stellar performance. Its aggressive look and intake sound add to the screaming In-Line Four experience, and visually identify the bike as one of Kawasaki’s Ninja ZX models.
High-Grade Suspension
The Ninja ZX-4R’s ø37 mm inverted fork uses SFFBP internals to offer both racetrack performance and everyday usability while the Horizontal Back-link rear suspension offers a progressive character. Offering increased adjustability, the Ninja ZX-4RR front fork includes an adjustable spring preload.
Smartphone Connectivity
Bluetooth technology built into the instrument panel allows connection to smartphones via the “RIDEOLOGY THE APP” smartphone application, enabling riders to access instrument functions for an enhanced motorcycling experience.
Fierce Ninja ZX Styling
Befitting the most powerful machine in the 400cc class, the Ninja ZX-4R’s aggressive Ninja styling exudes a fierce aura of restrained power and explosive action.
All-New In-Line Four Engine
The new 399 cm3 liquid-cooled DOHC In-Line Four engine pushes technological boundaries to comfortably top the 400cc class*. Developed with know-how gained from other Ninja ZX models, the high-performance engine offers class-leading power and a revrange that extends beyond 15,000 min-1.
World Superbike Inspired Chassis Design
Key chassis dimensions (centre of gravity position, swingarm pivot position, engine axis positions, caster
angle, etc) were inspired by Kawasaki’s World Superbike Ninja ZX-10RR racer, bringing WorldSBK chassis design thinking to the 400cc class.
2026 Kawasaki Ninja ZX-4RR ABS – Totalmotorcycle.com USA Specifications/Technical Details
US MSRP Price: $ 9,999 USD
Canada MSRP Price: $ TBA CDN
Europe/UK MSRP Price: £ TBA (On The Road inc 20% Vat)
POWER
| POWER | |
| Engine | 4-stroke, in-line 4-cylinder, DOHC, 16-valve, liquid-cooled |
| Displacement | 399cc |
| Bore x Stroke | 57.0 x 39.1mm |
| Compression Ratio | 12.3:1 |
| Maximum Horsepower | 56.0 hp¹ @ 11,500 rpm |
| Maximum Torque | 26.5 lb-ft @ 11,000 rpm |
| Fuel System | DFI® with 34mm throttle valves (4) |
| Ignition | TCBI with Digital Advance |
| Transmission | 6-speed, return shift |
| Final Drive | Chain |
| Electronic Rider Aids | Economical Riding Indicator, Kawasaki TRaction Control (KTRC) (3-mode), Kawasaki Quick Shifter (KQS) (dual direction), Power Modes, Anti-lock Brake System (ABS) |
PERFORMANCE
| PERFORMANCE | |
| Front Suspension / Wheel Travel | 37mm inverted Showa fork with SFF-BP internals and spring preload adjustability/4.7 in |
| Rear Suspension / Wheel Travel | Horizontal back-link, Showa BFRC lite gas-charged shock w/ piggyback reservoir, adjustable compression, rebound and spring preload/4.9 in |
| Front Tire | 110/70-17 |
| Rear Tire | 160/60-17 |
| Front Brakes | Dual 290mm semi-floating discs with radial-mount 4-piston monobloc caliper and ABS |
| Rear Brakes | Single 220mm disc with single-piston caliper and ABS |
DETAILS
| DETAILS | |
| Frame Type | Trellis, high-tensile steel |
| Rake/Trail | 23.5°/3.8 in |
| Overall Length | 78.3 in |
| Overall Width | 30.1 in |
| Overall Height | 43.7 in |
| Ground Clearance | 5.3 in |
| Seat Height | 31.5 in |
| Estimated Dry Weight | 383.7 lb** |
| Curb Weight | 414.5 lb* |
| Fuel Capacity | 4.0 gal |
| Wheelbase | 54.3 in |
| Special Features | 4.3″ Full-color TFT Instrumentation, Smartphone Connectivity via RIDEOLOGY THE APP |
| Color Choices | Lime Green, Metallic Matte Graphenesteel Gray/Metallic Spark Black, Pearl Robotic White/Metallic Spark Black |
2026 Kawasaki Ninja ZX-4RR ABS – Totalmotorcycle.com Canadian Specifications/Technical Details
TBA
2026 Kawasaki Ninja ZX-4RR ABS – Totalmotorcycle.com European Specifications/Technical Details
Engine
Engine type
Liquid-cooled, 4-stroke In-Line Four
Displacement
399 cm³
Bore x stroke
57 x 39.1 mm
Compression ratio
12.3:1
Valve system
DOHC, 16 valves
Fuel system
Fuel Injection: Ø 34 mm x 4
Starting System
Electric
Lubrication
Forced lubrication, wet sump
Performance & Transmission
Maximum power
57 kW {77 PS} / 14,500 rpm
Maximum power with RAM air
58.7 kW {80 PS} / 14,500 rpm
CO2 emission
120 g/km
Maximum torque
39 N•m {4 kgf•m} / 13,000 rpm
Transmission
6-speed, return
Final drive
Sealed chain
Primary Reduction Ratio
2.029 (69/34)
Gear Ratios 1st
2.929 (41/14)
Gear Ratios 2nd
2.056 (37/18)
Gear Ratios 3rd
1.619 (34/21)
Gear Ratios 4th
1.333 (32/24)
Gear Ratios 5th
1.154 (30/26)
Gear Ratios 6th
1.037 (28/27)
Final reduction ratio
3.429 (48/14)
Clutch
Wet multi-disc
Brakes & Suspension
Brakes, front
Dual semi-floating ø290 mm discs. Caliper: Dual radial-mount, monobloc, opposed 4-piston
Brakes, rear
Single 220 mm disc. Caliper: Single-piston
Suspension, front
ø37 mm inverted fork (SFF-BP) with spring preload adjustability, and topout springs
Suspension, rear
Horizontal Back-link, BFRC lite gas-charged shock with piggyback reservoir, compression and rebound damping and spring preload adjustability, and top-out spring
Frame & Dimensions
Frame type
Trellis, high-tensile steel
Trail
97 mm
Wheel travel front
120 mm
Wheel travel rear
124 mm
Tyre, front
120/70ZR17M/C (58W)
Tyre, rear
160/60ZR17M/C (69W)
L x W x H
1,990 x 765 x 1,110 mm
Wheelbase
1,380 mm
Ground clearance
135 mm
Fuel capacity
15 litres
Seat height
800 mm
Curb mass
189 kg
Manufacturer Specifications and appearance are subject to change without prior notice on Total Motorcycle (TMW).
Posted on September 20, 2025 by Michael Le Pard
