Kawasaki Ninja ZX-4RR has stirred considerable excitement in the motorcycle community, evoking a sense of nostalgia for the 400cc sportbike wars of the late 1980s and early 1990s.
This high-tech, inline four-cylinder machine delivers power that rivals its single- and twin-cylinder competitors.
With a sticker price reflecting its high-performance capabilities, the ZX-4RR offers a compelling package for riders seeking a lightweight sportbike experience.
Overview
When rumors emerged about Kawasaki introducing a 16,000-rpm four-cylinder 400 sportbike to the US market, many were skeptical.
However, Kawasaki defied expectations with the ZX-4RR, a motorcycle that embodies the spirit of high-performance lightweight sportbikes.
For riders familiar with the 400cc sportbike battles in Japan’s domestic market, the ZX-4RR is a dream come true.
It boasts a high-tech, inline four-cylinder engine with impressive power, ride-by-wire technology with a comprehensive electronics suite, dual four-piston front brake calipers, and high-quality, fully adjustable suspension.
While the ZX-4RR’s price tag is higher than its competitors, the motorcycle offers exceptional value for the money.
Its oversquare engine design, featuring a large bore and short stroke, allows for larger valves and higher rpm capability, resulting in enhanced performance.
The ZX-4RR also incorporates race-derived internal components that ensure control at high speeds. A slipper/power-assist clutch reduces lever effort, while a bidirectional quickshifter enables clutchless downshifts and upshifts.
The motorcycle’s electronics package includes four integrated riding modes: Sport, Road, Rain, and Rider, allowing riders to customize traction control and power settings.
Key Features and Specifications
The Kawasaki Ninja ZX-4RR boasts several key features and specifications that contribute to its high-performance capabilities.
Engine and Performance:
Engine Type: 4-stroke, In-Line Four, OHC, 16-valve, liquid-cooled
Displacement: 399cc
Bore x Stroke: 57.0 x 39.1mm
Compression Ratio: 12.3:1
Maximum Power: 77 PS (76 hp)
Maximum Torque: 39 Nm @ 13000 rpm
Fuel System: DFI® with 34mm throttle valves
Cooling System: Liquid Cooled
Emission Type: bs6-2.0
Top Speed: 200 kmph
Transmission:
Transmission: 6-speed, manual, return shift
Clutch: Wet, multiplate slipper/assist; cable operation
Final Drive: Chain
Quick Shifter: Kawasaki Quick Shifter (KQS) (dual direction)
Chassis and Suspension:
Frame Type: Trellis, high-tensile steel
Front Suspension: 37mm inverted fork with SFF-BP internals and spring preload adjustability/4.7 in
Rear Suspension: Horizontal Back-link, BFRC lite gas charged shock w/ piggyback reservoir, adjustable compression, rebound and spring preload/4.9 in
Front Tire: 110/70-17
Rear Tire: 160/60-17
Front Brakes: Dual 290mm discs, ABS
Rear Brakes: Single 220mm disc, ABS
Dimensions and Capacity:
Overall Length: 78.3 in (1990 mm)
Overall Width: 30.1 in (765 mm)
Overall Height: 43.7 in (1110 mm)
Ground Clearance: 5.3 in (135 mm)
Seat Height: 31.5 in (800 mm)
Curb Weight: 414.5 lb (189 kg)
Fuel Capacity: 4.0 gal (15 L)
Wheelbase: 54.3 in (1380 mm)
Features:
Electronic Rider Aids: Economical Riding Indicator, Kawasaki TRaction Control (KTRC) (3-mode), Kawasaki Quick Shifter (KQS) (dual direction), Power Modes, Anti-lock Brake System (ABS)
Instrumentation: 4.3″ Full-Color TFT Instrumentation
Smartphone Connectivity: via RIDEOLOGY THE APP
Riding Modes: Rain, Road, Sports, Rider
Mobile Connectivity: Bluetooth
Lighting: LED Headlight, Taillight, and Turn Signal Lamps
Design and Ergonomics
The Ninja ZX-4RR features a sporty and aggressive design that reflects its high-performance capabilities. Its sharp lines, aerodynamic bodywork, and eye-catching graphics create a visually appealing motorcycle.
The motorcycle’s ergonomics are designed to provide a comfortable and engaging riding experience. The seat is positioned at a height of 31.5 inches (800 mm), offering a balance between comfort and control.
The handlebars are placed to allow for an aggressive riding posture, while still providing enough comfort for longer rides.
Technology and Electronics
The Ninja ZX-4RR is equipped with a range of advanced technology and electronics that enhance its performance and rider experience.
The motorcycle features ride-by-wire technology, which provides precise throttle control and enables the integration of electronic rider aids.
The Kawasaki TRaction Control (KTRC) system offers three modes of intervention, allowing riders to adjust the level of traction control to suit their riding conditions and preferences.
The Kawasaki Quick Shifter (KQS) enables clutchless upshifts and downshifts, resulting in quicker and smoother gear changes. The Anti-lock Brake System (ABS) provides added safety and stability during braking.
The motorcycle’s 4.3″ full-color TFT instrumentation displays essential information such as speed, rpm, fuel level, and gear position.
It also features smartphone connectivity via RIDEOLOGY THE APP, allowing riders to access additional features and information.
Performance and Handling
The Ninja ZX-4RR delivers impressive performance and handling capabilities. Its 399cc inline-four engine produces a peak power of 77 PS (76 hp) and a maximum torque of 39 Nm.
The engine’s high-revving nature and responsive throttle make for an exhilarating riding experience. The motorcycle’s lightweight chassis and adjustable suspension contribute to its agile and precise handling.
The inverted front fork and horizontal back-link rear suspension provide excellent damping and control, allowing riders to confidently tackle corners and twisty roads.
The motorcycle’s braking system, featuring dual 290mm front discs and a single 220mm rear disc, offers strong and reliable stopping power.
The Kawasaki Ninja ZX-4RR is a high-performance lightweight sportbike that offers a compelling package for riders seeking an exhilarating and engaging riding experience.
Its high-revving inline-four engine, advanced technology, and agile handling make it a standout in its class.
While its price tag may be higher than some of its competitors, the ZX-4RR delivers exceptional value for the money, offering a level of performance and features that are unmatched in the lightweight sportbike segment.
Whether on the track or on the street, the Ninja ZX-4RR is sure to impress riders with its capabilities and overall riding experience.