After much speculation, the Japanese two-wheeler manufacturer finally revealed its next-generation sportbike.

Even though you’d think Kawasaki has nothing to do with a 400cc motorcycle, you’d be wrong. 

To be precise, the Japanese manufacturer includes a bike called the Ninja 400 in India, Japan, and Thailand. However, in the United States, they have just launched a new model: the Ninja ZX-4R.


Kawasaki has officially launched the latest addition to its range of unique motorcycles, the Kawasaki Ninja ZX-4R. Its arrival in the United States marks a unique milestone for Kawasaki and motorcycling.

Three variants

With three variants, ZX-4R, ZX-4R SE and ZX-4RR, and a renowned 79.1hp that can generate a massive 79.1hp with the help of Ram-Air, the latest motorcycle is a spectacular addition to the international market.

The Ninja® ZX™-4RR KRT Edition mounts a 399cc inline four-cylinder engine with class-leading performance in a compact chassis with proportions similar to smaller displacement models. 

On the track or on the street, experience the exhilaration of the Ninja ZX-4RR KRT Edition supersport’s unprecedented power, intoxicating high-rpm wail, and sharp, nimble handing that will awaken the dormant supersport within you.

Let’s dive deeper into the bike’s features and other details.


  • 399cc inline four-cylinder DOHC engine 
  • Ram air duct intake system
  • World superbike-inspired chassis
  • Kawasaki Quick Shifter ( KQS)
  • Kawasaki Traction Control (KTRC)

Additional features

  • High-performance suspension
  • Assist & Slipper clutch
  • Dual front disc brakes
  • Integrated Riding Modes
  • Power Mode Selection
  • TFT colour instrumentation with circuit mode
  • Smartphone Connectivity via RIDEOLOGY THE APP
  • All LED lighting
  • Exclusive Kawasaki Racing Team (KRT) colour & graphics


An all-new 399cc liquid-cooled, 4-stroke, inline four-cylinder engine delivers exhilarating performance and class-leading power to eclipse the rest of the 400cc field. 

Developed with feedback from other Kawasaki Ninja® ZX supersport machines, the engine’s quick-revving nature and direct throttle response offer strong low- to mid-range torque for city riding and screaming high-rpm power ideal for sport or track riding.

A trademark feature of Ninja® ZX models, the ram air intake system features a central intake and side duct that work with a downdraft intake to improve cylinder-filling efficiency to contribute to stellar engine performance.

The exhaust system configuration contributes to stable power output. It features a long silencer that produces a clear, racy exhaust note that can only come from an inline four-cylinder Ninja® sportbike.

The Ninja® ZX™-4RR KRT Edition supersport features a smooth-shifting six-speed transmission, making it especially well-suited for accelerating out of corners when sporting or track riding. The dual-direction Kawasaki Quick Shifter enables clutchless upshifts and downshifts for seamless acceleration and quick deceleration.

A racing-developed assist and slipper clutch provides light clutch lever pull and reduces back torque when excessive engine braking occurs due to quick or unintended downshifts. This helps prevent rear tire hopping and skidding.



Designed using advanced dynamic rigidity analysis, this trellis frame delivers the required balance of strength and chassis flex to achieve nimble supersport-style handling.

The 37mm inverted fork with SFF-BP internals and adjustable spring preload of the Ninja® ZX™-4RR KRT Edition supersport offers racetrack performance and everyday usability.

The horizontal back-link rear suspension, featuring a fully adjustable Showa BFRC Lite shock, offers a firm, planted feel that is reassuring during sport riding while also providing ample bump absorption for ride comfort when riding around town.


Dual front discs are gripped by radial-mount monobloc callipers, complimented by a large-diameter rear disc that offers strong stopping power and a superb feel. The Ninja® ZX™-4RR KRT Edition supersport features Nissin’s most compact and lightweight ABS control unit.

The 5-spoke star-pattern wheels and Dunlop GPR300 radial tires contribute to light, nimble handling, high grip, and excellent riding comfort.


A choice of Full Power or Low Power allows the rider to set power delivery to suit their riding preference or current conditions.

Total Power: Allows the rider to enjoy the unadulterated performance of the engine.

Low Power: Prioritizes manageability by offering power delivery and throttle response optimized for less-than-perfect weather and/or road conditions.

All-inclusive modes that link Kawasaki Traction Control (KTRC) and Power Modes allow the rider to easily set traction control and power delivery to suit a given riding situation.

Sport: Enables riders to enjoy sporty riding.

Road: Covers many situations, from city riding to highway cruising and rural roads.

Rain: Offers reassurance when riding on a wet road surface.

Rider (Manual): Each system can be set independently.


The dual-direction shifter enables clutchless upshifts and downshifts for seamless acceleration and quick and easy deceleration. This allows riders to take even more significant advantage of the exhilarating engine character.

Kawasaki Traction Control (KTRC) provides enhanced sport riding performance and peace of mind when riding in low-traction situations. Three rider-selectable modes offer varying levels of intrusion based on rider preference.

Mode 1: Least intrusive. Helps manage traction during cornering. Designed with sport riding in mind to facilitate acceleration out of corners.

Mode 2: Intervention occurs earlier. Offers a balance of sport riding support and enhanced rider confidence.

Mode 3:Most intrusive. When excessive wheel spin is detected, engine output is reduced to allow grip to be regained.


The slim fuel tank allows for excellent rider contact with the bike. The low top of the fuel tank allows the rider to get into a tucked position.

The adjustable brake and clutch levers (5 available positions for each) allow the rider to tailor the lever position to suit their hand size and preference. Supersport-style aluminium footpegs offer a natural feel and reasonable control when sport riding.

The firm, comfortable seat facilitates rider weight shift during sport or track riding.



The aggressive full-fairing design exudes a fierce aura of restrained power and explosive action, while the sharp chin spoiler contributes to the strong Ninja® family image.

A trademark feature of Kawasaki’s Ninja® ZX models, the ram air intake, prominently located at the centre of the upper cowl, instantly sets the Ninja® ZX™-4RR KRT Edition supersport apart from the competition. 

The ram air duct that passes to the left of the front fork is visible to the rider and is stamped with “Ram Air” as a reminder of this machine’s high performance.

The 4.3″ all-digital TFT color instrumentation gives the cockpit a high-tech, high-grade look. It features a Circuit Mode for lap timing and displays track-related information in a more prominent, easier-to-view layout.


Bluetooth® smartphone connectivity (via RIDEOLOGY THE APP*) connects you with your bike like never before, allowing you to view vehicle info, a riding log, phone notifications, and general settings.

*RIDEOLOGY THE APP is not intended for use during vehicle operation. 

Only use RIDEOLOGY THE APP when the vehicle is not being operated, and it is safe to do so. All trademarks, registered trademarks, logos, and copyrights are the property of their respective owners.

Twin LED headlights, front turn signals, and an LED taillight help the Ninja® ZX™-4RR KRT Edition supersport stand out while providing excellent illumination.

The Kawasaki – Ninja® ZX™-4RR is available in the US market, and the price starts from $ 9699.

Source: Kawasaki


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