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2026 Ninja ZX-4R FEATURES SPECS GALLERY
2026 Ninja ZX-4R

Into a category filled with 400cc sport models, Kawasaki introduces a revolutionary supersport model. The Ninja ZX-4R mounts a 399 cc In-Line Four engine with class-leading performance in a compact chassis with proportions similar to smaller-displacement models. On the track or on the street, experiencing the exhilaration of the Ninja ZX-4R’s unprecedented power, intoxicating high-rpm wail, and its sharp, nimble handling will surely awaken the dormant supersport within you.

FEATURING:

  • High-revving 399 cc in-line four engine
  • Worldsbk-inspired chassis design
  • High-performance suspension and brake components
  • High-grade electronics and features
  • Fierce Ninja ZX styling

ADDITIONAL VEHICLE FEATURES:

  • Centre Ram Air
  • ø37 mm SFF-BP front suspension
  • Horizontal Back-link rear suspension
  • Dual ø290 mm semi-floating discs with radial-mount calipers
  • Integrated Riding Modes (with KTRC and Power Modes)
  • TFT instrumentation with Circuit Mode
  • Smartphone connectivity
  • 188 kg curb weight* (174 kg estimated dry weight**)

MAKE AN ENQUIRY

Features

CLASS-LEADING ENGINE PERFORMANCE

Redefining the 400cc Supersport Category

Kawasaki takes 400cc-class engine performance to a new level, achieving an unprecedented 56.7 kW (77 PS) of power with Ram Air. The howl of the engine as it revs beyond 15,000 rpm adds to rider exhilaration. A quick-revving nature and direct throttle response are complemented by a flexible character that offers strong low- to mid-range torque for city riding, as well as screaming high-rpm power ideal for sport or track riding.

ULTRA-COMPACT NIMBLE SUPERSPORT CHASSIS

Supersport handling, stopping power and ride character

A hallmark of the ZX series is razor-sharp handling with excellent feedback that inspires confidence, and the Ninja ZX-4R is no exception. This stems directly from Kawasaki’s WorldSBK racing efforts, and their work in developing the Ninja ZX-10R and Ninja ZX-6R. As a result, the Ninja ZX-4R offers a handling character similar to its siblings.

PREMIUM COMPONENTS AND FEATURES

High-Grade Package with High-Class Styling

Style meets substance with the Ninja ZX-4R’s high-class styling and high-grade package. Aggressive looks are complemented by premium features like TFT colour instrumentation providing clear information, integrated Riding Modes that link traction control and power modes for easy machine setup, and on the Ninja ZX-4RR a quick shifter for fast, simple gear changes.

Technical Specifications

Maximum Power
55.0 kW {75 PS} / 14,500 rpm
Maximum Power with Ram Air
56.7 kW {77 PS} / 14,500 rpm
Maximum Torque
37.6 Nm {3.8 kgfm} / 12,500 rpm
Engine
4-stroke In-Line Four
Displacement
399 cc
Bore x Stroke
57.0 x 39.1 mm
Compression Ratio
12.3:1
Valve System
DOHC, 16 valves
Fuel System
Fuel injection: ø34 mm x 4
Ignition
Digital
Starting
Electric
Cooling
Liquid-cooled
Lubrication
Forced lubrication, wet sump
Transmission
6-speed, return
Primary Reduction Ratio
2.029 (69/34)
Gear Ratio 1st
2.929 (41/14)
Gear Ratio 2nd
2.056 (37/18)
Gear Ratio 3rd
1.619 (34/21)
Gear Ratio 4th
1.333 (32/24)
Gear Ratio 5th
1.154 (30/26)
Gear Ratio 6th
1.037 (28/27)
Final Reduction Ratio
3.429 (48/14)
Clutch
Wet multi-disc, manual
Final Drive
Chain
Frame
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
Rake
23.5°
Trail
97 mm
Steering Angle (L/R)
35° / 35°
Front Tyre
120/70ZR17M/C (58W)
Rear Tyre
160/60ZR17M/C (69W)
Front Brake/s
Dual semi-floating ø290 mm discs
Front Caliper/s
Dual radial-mount, monobloc, opposed 4-piston
Rear Brake
ø220 mm disc
Rear Caliper
Single-piston
Assist & Slipper Clutch
Yes
Economical Riding Indicator
Yes
Electronic Throttle Valves
Yes
KTRC (Kawasaki Traction Control)
Yes
Power Modes
Yes
Smartphone Connectivity
Yes
ABS (Anti-lock Brake System)
Yes
Horizontal Back-link Rear Suspension
Yes
Dimensions (LxWxH)
1,990 x 765 x 1,110 mm
Wheelbase
1,380 mm
Road Clearance
135 mm
Seat Height
800 mm
Curb Weight*
188 kg
Estimated Dry Weight**
174 kg
Fuel Capacity
15 litres
Model Code
ZX400PTFNN
showroom_folder				2026 ninja zx-4r
showroom_brand				kawasaki
showroom_brand_wufoo		kawasaki
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showroom_technology_data	
showroom_engine_data		
showroom_chassis_data		
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content_description1		

Into a category filled with 400cc sport models, Kawasaki introduces a revolutionary supersport model. The Ninja ZX-4R mounts a 399 cc In-Line Four engine with class-leading performance in a compact chassis with proportions similar to smaller-displacement models. On the track or on the street, experiencing the exhilaration of the Ninja ZX-4R’s unprecedented power, intoxicating high-rpm wail, and its sharp, nimble handling will surely awaken the dormant supersport within you.

FEATURING:

ADDITIONAL VEHICLE FEATURES:

content_description2 Power;Performance;Technology;Details#####Maximum Power|55.0 kW {75 PS} / 14,500 rpm;Maximum Power with Ram Air|56.7 kW {77 PS} / 14,500 rpm;Maximum Torque|37.6 Nm {3.8 kgfm} / 12,500 rpm;Engine|4-stroke In-Line Four;Displacement|399 cc;Bore x Stroke|57.0 x 39.1 mm;Compression Ratio|12.3:1;Valve System|DOHC, 16 valves;Fuel System|Fuel injection: ø34 mm x 4;Ignition|Digital;Starting|Electric;Cooling|Liquid-cooled;Lubrication|Forced lubrication, wet sump;Transmission|6-speed, return;Primary Reduction Ratio|2.029 (69/34);Gear Ratio 1st|2.929 (41/14);Gear Ratio 2nd|2.056 (37/18);Gear Ratio 3rd|1.619 (34/21);Gear Ratio 4th|1.333 (32/24);Gear Ratio 5th|1.154 (30/26);Gear Ratio 6th|1.037 (28/27);Final Reduction Ratio|3.429 (48/14);Clutch|Wet multi-disc, manual;Final Drive|Chain#####Frame|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;Rake|23.5°;Trail|97 mm;Steering Angle (L/R)|35° / 35°;Front Tyre|120/70ZR17M/C (58W);Rear Tyre|160/60ZR17M/C (69W);Front Brake/s|Dual semi-floating ø290 mm discs;Front Caliper/s|Dual radial-mount, monobloc, opposed 4-piston;Rear Brake|ø220 mm disc;Rear Caliper|Single-piston#####Assist & Slipper Clutch|Yes;Economical Riding Indicator|Yes;Electronic Throttle Valves|Yes;KTRC (Kawasaki Traction Control)|Yes;Power Modes|Yes;Smartphone Connectivity|Yes;ABS (Anti-lock Brake System)|Yes;Horizontal Back-link Rear Suspension|Yes#####Dimensions (LxWxH)|1,990 x 765 x 1,110 mm;Wheelbase|1,380 mm;Road Clearance|135 mm;Seat Height|800 mm;Curb Weight*|188 kg;Estimated Dry Weight**|174 kg;Fuel Capacity|15 litres;Model Code|ZX400PTFNN content_description3 content_allow_reviews n content_author content_external_ref1 content_external_ref2 content_external_ref3 showroom-Kawasaki-2026-Ninja-ZX-4R content_compatibility_code n content_external_src content_fullpath Kawasaki 2026 Ninja ZX-4R content_level 2 content_id 11295 content_module content_name 2026 Ninja ZX-4R content_short_description1 content_short_description2 content_short_description3 content_type_code showroom content_type_id 15 content_type_name Showroom date_posted 0000-00-00 00:00:00 date_updated 2026-04-20 09:12:52 page_editor page_header 2026 Ninja ZX-4R page_id 11295 page_index page_subheader parent_content_id 3035 parent_id 3035 rating 0 reviews 0 sortorder 0 subtitle templatebody showroom_model templatefoot templatehead templatesearch thumb_content_type_id 0 timestamp 2026-04-20 09:12:52