2023 Kawasaki Ninja ZX-4R Review

The Kawasaki Ninja series is getting a lot of attention this year and with good reason. Kawasaki presents us, among others, the ZX-4RR, ready for the track with features rarely seen on a production motorcycle of this displacement and what’s more, at a reasonable price.

Kawasaki also offers us the ZX-4R, which I have the opportunity to test over the next few days as well as the Ninja 400 models. I will tell you about my experience with the ZX-4R but also make a little comparison with the other two models to fully understand the differences of each.

When I took possession of the Ninja, what I immediately noticed and appreciated about the ZX-4R was its size. We don’t have the impression of being on a small motorcycle despite the displacement. A plus for many, with only 20 millimeters difference with the ZX-6R on the wheelbase and 35 millimeters on the total length.

I really appreciate manufacturers who, despite the small displacement and the category that could be called “Entry-level”, do not cut corners, and offer a quality product with characteristics similar to the larger models.

The Ninja’s engine is a small 4-cylinder engine with a very high rev capacity that I like! A nice power curve and superb sound is offered with this engine. Once 8,000 rpm has been reached, the concert begins, and a smile instantly appears…

The 6-speed transmission also offers an interesting speed range compared to other models in the same category. I don’t like being stuck riding at too low or too high rpm due to an “unoptimized” gear ratio…

I don’t always ride on freeways or country roads, and I like to have a motorcycle that is easy and pleasant to drive around town which is the case with this model.

Now, to better understand their specificities, let’s compare the 3 models a little further.

Ninja ZX-4RR:

• 399cc DOHC 16-valve in-line four engine
• 6-speed with assist & slipper clutch
• Dual-Direction Quick Shifter
• 15-liter tank
• Inverted Forks (SFF-BP) Adjustable
• Fully adjustable gas-charged shock with piggyback reservoir.
• Dual floating disk with 4-piston calipers on the Front
• Full Color TFT screen
• Power Modes & Traction Control
• 120/17 – 160/17 tires

Ninja ZX-4R:

• 399cc DOHC 16-valve in-line four engine
• 6-speed with assist & slipper clutch
• 15-liter tank
• Inverted Forks (SFF-BP)
• Gas-charged shock with adjustable spring preload
• Dual floating disk with 4-piston calipers on the Front
• Full Color TFT screen
• Power Modes & Traction Control
• 120/17 – 160/17 tires

Ninja 400:

• 399cc Parallel Twin DOHC 8-Valve Engine
• 6-speed with assist & slipper clutch
• 14-liter tank
• Telescopic Forks
• Gas-charged shock with adjustable spring preload
• 1 Front disc with a 2-piston caliper
• LCD screen  + Analogue-style Tach
• 110/17 – 150/17 tires

Braking capacity for the ZX-4R/4RR is also impressive with a dual front disc and 4-piston caliper that will also take abuse. Under heavy braking, the bike remained stable and predictable, and I felt fully confident. For me, strong and precise braking is essential to fully enjoy a motorcycle and of its capabilities.

There are more distinctions for the Ninja 400. It is a more modest version, but perfect for the road, daily commuting and those looking for the fun of sports models, but less suitable for track driving or aggressive riding.

Riding, curves, and fun times equal happiness on two wheels. The Ninja ZX-4R is enjoyable to ride, and I would have really enjoyed riding it for a long period. A great machine to start or stay in the sport without some of the inconveniences of bigger displacement motorcycles.

A great success for Kawasaki. Whether you are an experienced rider or not, the ZX-4R is definitely worth considering, especially for those who like or who would like to do a few outings on the track from time to time.

A perfect Christmas gift to give yourself! At least to put on our list…