The Kawasaki ZX-4R has arrived, shaking up the middleweight sportbike market with sheer performance, top-tier engineering, and an unmistakable Kawasaki racing DNA. This isn’t just another 400cc motorcycle, it’s a machine that redefines what riders can expect in the sub-500cc category. With a blistering 76bhp packed into its compact frame, the ZX-4R brings an adrenaline-pumping riding experience that rivals even larger superbikes.
Unlike many competitors that rely on twin-cylinder or single-cylinder engines, Kawasaki has boldly equipped the ZX-4R with an inline-four engine — a rare feat in this category. This gives it not only more power but also a thrilling, high-revving character and an iconic sound that resonates with motorcycle enthusiasts. The ZX-4R appeals to both experienced riders craving track thrills and daily commuters wanting a slice of superbike excitement in a manageable form.
The ZX-4R is also a symbol of Kawasaki’s commitment to innovation. With its advanced electronic features, lightweight design, and race-inspired aesthetics, this motorcycle aims to be more than just fast — it’s designed to be an unforgettable experience on two wheels.
Kawasaki ZX-4R – Engine Power and Performance
At the heart of the Kawasaki ZX-4R is a 399cc, liquid-cooled inline-four engine, a configuration usually reserved for larger supersport models. This engine delivers 76 bhp at 14,500 rpm and 39 Nm of torque at 13,000 rpm, making it one of the most powerful motorcycles in the 400cc category. Riders can expect thrilling acceleration, with the bike hitting 0-100 km/h in under 5 seconds and reaching a top speed near 220 km/h.
This performance is complemented by a six-speed transmission and an optional quickshifter that allows clutchless gear changes. The ram air intake system adds another layer of performance, increasing power at higher speeds by forcing more air into the combustion chamber. The result is a bike that feels alive across the rev range, whether you’re zipping through city streets or tearing up the track.
Bold Design and Rider Ergonomics
The ZX-4R’s design draws inspiration from Kawasaki’s flagship models, particularly the ZX-6R and ZX-10R. Its sharp fairings, dual LED headlights, and aerodynamic tail section create an aggressive, race-ready look. But it’s not just about aesthetics — every element of the design serves a purpose. The bodywork improves high-speed stability, while the muscular fuel tank and compact exhaust contribute to a well-balanced, centralized mass for improved handling.
The ergonomics strike a thoughtful balance between sporty aggression and rider comfort. With a seat height of 800mm, the bike accommodates a wide range of riders, and the slightly leaned-forward riding position offers great control without being overly punishing on longer rides.
| Specification | Detail |
|---|---|
| Engine Type | 399cc Inline-Four |
| Maximum Power | 76bhp @ 14,500 rpm |
| Maximum Torque | 39 Nm @ 13,000 rpm |
| Transmission | 6-Speed, Optional Quickshifter |
| Kerb Weight | 188 kg |
| Top Speed | ~220 km/h |
| Fuel Tank Capacity | 15 litres |
| Suspension Front | 37mm USD Forks |
| Suspension Rear | Preload-Adjustable Monoshock |
| Seat Height | 800 mm |
| Wheelbase | 1380 mm |
| Ground Clearance | 135 mm |
Electronics and Advanced Features
One of the standout elements of the ZX-4R is its sophisticated electronics package. Kawasaki has equipped this middleweight machine with features usually seen on larger, more expensive superbikes. Riders benefit from Kawasaki Traction Control (KTRC) with three adjustable modes, providing better grip and control in various conditions.
The bike also comes with dual power modes, Full and Low, allowing riders to tailor the power delivery based on their skill level or riding environment. The ride-by-wire throttle ensures a smooth, precise connection between the rider’s inputs and the engine response. Adding to the premium feel is the 4.3-inch color TFT display, which offers smartphone connectivity through Kawasaki’s Rideology app, enabling access to ride logs, notifications, and even GPS integration.
Electronics and Rider Aids
| Feature | Details |
|---|---|
| Traction Control | Kawasaki KTRC, Three Modes |
| Power Modes | Full, Low |
| Throttle System | Ride-by-Wire |
| Quickshifter | Optional on SE and RR variants |
| Dashboard Display | 4.3-inch Color TFT Screen |
| Smartphone Connectivity | Kawasaki Rideology App Integration |
| Additional Tech | Ride Data, GPS, Notifications |
Options for Every Type of Rider
Kawasaki offers the ZX-4R in three key variants, allowing buyers to select the configuration that best matches their riding style and budget.
- ZX-4R (Base Model): Offers core performance, electronics, and standard features.
- ZX-4R SE (Special Edition): Adds a quickshifter, USB charger, and exclusive graphics for a sportier package.
- ZX-4RR (Race-Ready): Includes race-spec suspension and track-tuned components for serious enthusiasts.
The pricing reflects these additions, with the top-end RR model commanding the highest price, but also offering the most advanced components and tuning for aggressive riding.
How the ZX-4R Dominates Its Class
In the 400cc category, the Kawasaki ZX-4R stands out not just in terms of power but also in terms of refinement, equipment, and riding experience.
- Yamaha R3: 321cc parallel-twin, ~42bhp, ~180 km/h top speed
- KTM RC 390: 373cc single-cylinder, ~44bhp, ~170 km/h top speed
- Aprilia RS 457: 457cc parallel-twin, ~47bhp, ~190 km/h top speed
While these rivals are lighter and more affordable, none offer the unique inline-four configuration, high-revving performance, or the level of electronic sophistication found in the ZX-4R. For those willing to pay a premium for an unmatched riding experience, the ZX-4R has no equal in this segment.
Is the Kawasaki ZX-4R Worth It?
The Kawasaki ZX-4R is not merely another addition to the 400cc lineup it’s a groundbreaking machine that brings big-bike excitement to a compact package. With its inline-four engine, advanced electronics, stunning design, and multiple variants, it offers riders an experience unmatched in its class.
For enthusiasts looking for a machine that combines the thrill of high-speed performance with cutting-edge technology and premium craftsmanship, the ZX-4R stands tall as a worthy investment. Whether you’re a track-day fanatic, a weekend road explorer, or someone simply seeking top-tier excitement, this Kawasaki delivers on all fronts, making it one of the most desirable middleweight sportbikes available today.