Ninja ZX-4R

SCREAMING IN-LINE 4 POWER: REDEFINING THE 400CC SUPERSPORT CATEGORY

Ninja ZX-4R

Riders who were around in the heyday of 400cc supersport machines in the 1980s and 1990s will remember their high-revving character, how lightweight and compact they were, and their exciting cornering performance. In the modern era, 400cc machines remain an excellent midway point between the 250cc and 600cc classes, but many do not offer the same performance and thrill as their older counterparts. However, the arrival of the new Ninja ZX-4R ushers in a screaming 400cc revolution with an all-new In-Line Four engine making an unprecedented 55 kW (75 PS).

  • Ninja ZX-4R : Metallic Spark Black (2024)
  • Ninja ZX-4R : Metallic Spark Black (2024)
  • Ninja ZX-4R : Metallic Spark Black (2024)

COLOR

  • Metallic Spark Black (2024)

PRICE (BAHT)

  • 299,000
  • * Price and promotion are according to the terms and conditions on the day of purchase.

Top Features

Top Features

All-New In-Line Four Engine

The new 399 cm3 liquid-cooled DOHC In-Line Four engine pushes technological boundaries to comfortably top the 400cc class*. Developed with know-how gained from other Ninja ZX models, the high-performance engine offers class-leading power and a rev-range that extends beyond 15,000 min-1.

High-Grade Suspension

The Ninja ZX-4R’s ø37 mm inverted fork uses SFF-BP internals to offer both racetrack performance and everyday usability while the Horizontal Back-link rear suspension offers a progressive character. Offering increased adjustability, the Ninja ZX-4R SE front forks include adjustable spring preload.

World Superbike Inspired Chassis Design

Key chassis dimensions (centre of gravity position, swingarm pivot position, engine axis positions, caster angle, etc) were inspired by Kawasaki’s World Superbike Ninja ZX-10RR racer, bringing WorldSBK chassis design thinking to the 400cc class.

Performance & Sound

Header pipes and collector pipe layout were inspired by the exhaust of the Ninja ZX-6R. Joint pipes link the headers, contributing to strong power output and meeting emissions and sound regulations.

High-Performance Supersport Brakes

The ZX-4R’s two ø290 mm front brake discs and radial-mount monobloc calipers provide sure stopping power, while also offering excellent braking feel to inspire confidence both on the track and on the street.

Smartphone Connectivity

Bluetooth technology built into the instrument panel allows connection to smartphones via the “RIDEOLOGY THE APP” smartphone application, enabling riders to access instrument functions for an enhanced motorcycling experience.

TFT Colour Instrumentation with Circuit Mode

The 4.3” all-digital TFT colour instrumentation with selectable display modes (Normal, Circuit) clearly displays the most pertinent information, whether on the street or on the track. Circuit Mode shows the gear position, lap times, and rpm above 10,000 more prominently.

Integrated Riding Modes

Four integrated riding modes (Sport, Road, Rain or Rider (manual)) make it simple to select a level of traction control and power mode to suit the current riding conditions.

MODEL VARIATIONS

The Ninja ZX-4R SE, with original KRT-inspired colour and graphics, higher-grade front fork with adjustable spring preload, and equipped with a number of accessories, is also available in certain markets.

 

Accessories equipped on the Ninja ZX-4R SE include:

- Dual-direction KQS

- smoked windshield

- USB outlet

- frame sliders

- adjustable spring preload front fork

  • All-New In-Line Four Engine

    The new 399 cm3 liquid-cooled DOHC In-Line Four engine pushes technological boundaries to comfortably top the 400cc class*. Developed with know-how gained from other Ninja ZX models, the high-performance engine offers class-leading power and a rev-range that extends beyond 15,000 min-1.

  • High-Grade Suspension

    The Ninja ZX-4R’s ø37 mm inverted fork uses SFF-BP internals to offer both racetrack performance and everyday usability while the Horizontal Back-link rear suspension offers a progressive character. Offering increased adjustability, the Ninja ZX-4R SE front forks include adjustable spring preload.

  • World Superbike Inspired Chassis Design

    Key chassis dimensions (centre of gravity position, swingarm pivot position, engine axis positions, caster angle, etc) were inspired by Kawasaki’s World Superbike Ninja ZX-10RR racer, bringing WorldSBK chassis design thinking to the 400cc class.

  • Performance & Sound

    Header pipes and collector pipe layout were inspired by the exhaust of the Ninja ZX-6R. Joint pipes link the headers, contributing to strong power output and meeting emissions and sound regulations.

  • High-Performance Supersport Brakes

    The ZX-4R’s two ø290 mm front brake discs and radial-mount monobloc calipers provide sure stopping power, while also offering excellent braking feel to inspire confidence both on the track and on the street.

  • Smartphone Connectivity

    Bluetooth technology built into the instrument panel allows connection to smartphones via the “RIDEOLOGY THE APP” smartphone application, enabling riders to access instrument functions for an enhanced motorcycling experience.

  • TFT Colour Instrumentation with Circuit Mode

    The 4.3” all-digital TFT colour instrumentation with selectable display modes (Normal, Circuit) clearly displays the most pertinent information, whether on the street or on the track. Circuit Mode shows the gear position, lap times, and rpm above 10,000 more prominently.

  • Integrated Riding Modes

    Four integrated riding modes (Sport, Road, Rain or Rider (manual)) make it simple to select a level of traction control and power mode to suit the current riding conditions.

  • MODEL VARIATIONS

    The Ninja ZX-4R SE, with original KRT-inspired colour and graphics, higher-grade front fork with adjustable spring preload, and equipped with a number of accessories, is also available in certain markets.

     

    Accessories equipped on the Ninja ZX-4R SE include:

    - Dual-direction KQS

    - smoked windshield

    - USB outlet

    - frame sliders

    - adjustable spring preload front fork

Specifications

Specifications

DIMENSIONS
Overall length 1,990 mm
Overall width 765 mm
Overall height 1,110 mm
Wheelbase 1,380 mm
Road clearance 135 mm
Seat height 800 mm
Curb mass 188 kg
Dry mass -
Fuel tank capacity 15 litres

PERFORMANCE
Max. power 55.0 kW {75 PS} / 14,500 min-1
Max. Power with Ram Air 56.7 kW {77 PS} / 14,500 min-1
Max. torque 39.0 N·m {4.0 kgƒ·m} / 13,000 min-1

ENGINE
Type / Valve system 4-stroke In-Line Four
Coolant System Liquid-cooled
Bore x Stroke 57.0 x 39.1 mm
Displacement 399 cm3
Compression ratio 12.3:1
Fuel supply Fuel injection: ø34 mm x 4
Lubrication system Forced lubrication, wet sump
Starting system EL. Starter
Ignition system Digital

DRIVETRAIN
Driving system Chain
Transmission 6-speed, return
Primary reduction ratio 2.029 (69/34)
1st Gear ratios 2.929 (41/14)
2st Gear ratios 2.056 (37/18)
3st Gear ratios 1.619 (34/21)
4st Gear ratios 1.333 (32/24)
5st Gear ratios 1.154 (30/26)
6st Gear ratios 1.037 (28/27)
Final reduction ratio 3.429 (48/14)
Clutch type (Primary) Wet multi-disc, manual

FRAME
Type Trellis, high-tensile steel
Front Suspension ø37 mm inverted fork (SFF-BP) with top-out springs
Rear Suspension Horizontal Back-link, gas-charged shock with spring preload adjustability
Front Wheel travel 120 mm
Rear Wheel travel 112 mm
Caster (Rake angle) 23.5°
Trail 97 mm
Steering angle (left/right) 35° / 35°
Front Tyre 120/70ZR17M/C (58W)
Rear Tyre 160/60ZR17M/C (69W)
Front Type Brake Dual semi-floating ø290 mm discs
Caliper (Front) Dual radial-mount, monobloc, opposed 4-piston
Rear Type Brake Single ø220 mm disc
Caliper (Rear) Single-piston