Kawasaki Announce the Ninja ZX-4RR

POSTED: 16/06/2023

Kawasaki Motors Corporation has announced that it will launch a mid-weight, high-performance machine in its famous Ninja range to be called the Ninja ZX-4RR. Incorporating a newly designed engine and frame, the exciting new addition to Kawasaki’s Supersports line. The model is expected in Europe in the Autumn of 2023.

Whether a seasoned rider or new to the joys of Supersport, Ninja ZX-4RR riders will experience the exciting riding pleasure of the "APEX PREDATOR" concept on the racetrack or on the street.


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.

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.

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.

All-LED Lighting

From its twin headlights to its Ninja ZX-10R-inspired taillight, all lighting on the Ninja ZX-4R is LED.

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.

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.

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 an excellent braking feel to inspire confidence both on the track and on the street.

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.

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 rev range that extends beyond 15,000 min-1.

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.

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.

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.

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.


Ninja ZX-4RR:

In addition to the original Kawasaki Racing Team-inspired colours and "RR" graphics, the rear suspension features Showa's BFRC-lite, the same type used on the Ninja ZX-10R supersport model. This specification allows for a sportier riding experience.

 -Dual direction KQS 

The Kawasaki ZX-4RR has now been priced at £8,699

To see the ZX-4RR you can follow the link here

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