Kawasaki Ninja ZX-4R

After months of speculation, Kawasaki has officially announced its latest sports bike line-up with the all-new Kawasaki ZX-4R. 

  • The Kawasaki Ninja ZX-4R is the latest inline-four screamer to join Team Green. 
  • The Ninja ZX-4R features the same high-tensile steel trellis frame as the ZX-25R. 

Available in three variants, ZX-4R, ZX-4R SE and ZX-4RR is powered by the firm all-new 399cc inline-four, water-cooled 4-stroke with DOHC unit that’s capable of pumping 79.1hp with Ram-Air. 

Similar to the ZX-25R, the 400cc screamer also offers a generous rev limit of over 15,000rpm and is fitted with the same trellis (high tensile steel) frame. 

Power is fed from the bike’s 15-litre fuel tank and is regulated by a 6-speed manual transmission with a final chain drive.

The suspension comes from Showa with SFF-BP forks at the front and a horizontal back-link at the rear. However, the suspension package is what sets the three variants apart, with the base model getting the SFF-BP forks as mentioned above, while the SE and RR feature front forks with preload adjustment. The RR is also equipped with Showa BFRC-lite rear shock similar to the one found on the ZX-10R. 

Braking is done via radial-mounted callipers mated to a dual 290mm front brake disc and a single 220mm disc at the rear. 

Electronic-wise, the Ninja ZX-4R features all-around LED lighting, Kawasaki Traction Control (KTRC), 4-power modes (Sport, Rain, Road and Rider), a two-way quickshifter (SE and RR) and a 4.3-inch LCD colour display with integrated ‘Track Mode’. 

According to Kawasaki USA, the Kawasaki Ninja ZX-4R is confirmed for release in mid-2023 with an official selling price of USD 9,699 (RM41.3k). 

It is no secret that Kawasaki plans to introduce the Ninja ZX-4R in 2023, as confirmed by the latest report in Japan.

  • The current ZX-25R is set to be joined by the bigger ZX-4R.
  • A new VIN decoder suggests that the ZX-4R will be available in two trims, ABS and non-ABS.

Japanese publication, Autoby managed to get an inside scoop regarding the 399cc inline-four cylinder motorcycle.

Now, thanks to the latest report by, a new Vehicle Identification Number (VIN) decoder released by the U.S. National Highway Traffic Safety Administration has confirmed that Kawasaki will indeed introduce the Ninja ZX-4R model for 2023.

This means that unlike the ZX-25R – currently only available in Japan and other Asian markets due to emission restrictions – the Ninja ZX-4R will make its way to the U.S. and Europe.

The VIN decoder was dated March 22, which stated the following listings that you can check out HERE.

The first row on the first column listed ZX400PP. According to, the Z.X. refers to a high-performance sportsbike, while the 400 indicates the engine capacity followed by the letter “P” representing 2023MY.

The complete VIN decoder listings – specifically the first two rows of the seventh column – clearly state the number of cylinders of the ZX400PP and ZX400SP.

The ZX-4R could be offered in two trims, ABS and non-ABS, hence the ZX400PP and ZX400SP.

Like the ZX-25R, the upcoming ZX-4R is likely to present a significant increase of power over the Ninja 400’s 48hp, with rumours going around suggesting the 400cc inline-four cylinder motorcycle to put out around 59hp.



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