2026 Kawasaki Ninja ZX-4RR ABS
2026 Kawasaki Ninja ZX-4RR ABS

Specs

General Information

Manufacturer
Kawasaki
Kawasaki
Model Year
2026
2026
Model
Ninja ZX-4RR ABS
Ninja ZX-4RR ABS
Model Code
ZX400STFAL
ZX400STFAL
Color
Metallic Matte Graphenesteel Gray / Metallic Spark Black
Metallic Matte Graphenesteel Gray / Metallic Spark Black

Brakes/Wheels/Tires

Brakes

Front - Dual 290 mm semi-floating discs with radial-mount 4-piston monobloc caliper and ABS

Rear - Single 220 mm disc with single-piston caliper and ABS

ABS (Anti-lock Brake System)

Front - Dual 290 mm semi-floating discs with radial-mount 4-piston monobloc caliper and ABS

Rear - Single 220 mm disc with single-piston caliper and ABS

ABS (Anti-lock Brake System)

Tires

Front - 110 / 70-17

Rear - 160 / 60-17

Front - 110 / 70-17

Rear - 160 / 60-17

Dimensions

Length
Overall - 78.3 in.
Overall - 78.3 in.
Height
Overall - 43.7 in.
Overall - 43.7 in.
Width
Overall - 30.1 in.
Overall - 30.1 in.
Weight

Curb - 414.5 lb.*

Estimated dry - 383.7 lb.**

*Curb weight includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).

**Dry weight does not include all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).

Curb - 414.5 lb.*

Estimated dry - 383.7 lb.**

*Curb weight includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).

**Dry weight does not include all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).

Ground Clearance
5.3 in.
5.3 in.
Wheelbase
54.3 in.
54.3 in.
Seat Height
31.5 in.
31.5 in.

Drivetrain

Transmission
6-speed, return shift
6-speed, return shift
Final Drive
Chain
Chain

Electrical

Instrumentation

4.3 in. Full-color TFT, Smartphone Connectivity via RIDEOLOGY THE APP

Economical riding indicator

4.3 in. Full-color TFT, Smartphone Connectivity via RIDEOLOGY THE APP

Economical riding indicator

Advanced Electronics

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)

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)

Engine

Engine

4-stroke, DOHC, 16-valve

Electronic throttle valves

4-stroke, DOHC, 16-valve

Electronic throttle valves

Cooling
Liquid-cooled
Liquid-cooled
Cylinders
In-line 4
In-line 4
Horsepower

Maximum - 56 hp¹ @ 11,500 rpm

¹This vehicle's HP was measured according to ISO standard 4106. This ISO standard measures HP differently than the SAE standards by which the horsepower of many cars is measured, and as a result the referenced HP measurement may be higher than if it were measured by an SAE standard.

Maximum - 56 hp¹ @ 11,500 rpm

¹This vehicle's HP was measured according to ISO standard 4106. This ISO standard measures HP differently than the SAE standards by which the horsepower of many cars is measured, and as a result the referenced HP measurement may be higher than if it were measured by an SAE standard.

Displacement
399 cc
399 cc
Bore x Stroke
2.2 x 1.5 in. (57 x 39.1 mm)
2.2 x 1.5 in. (57 x 39.1 mm)
Torque
Maximum - 26.5 ft. lb. @ 11,000 rpm
Maximum - 26.5 ft. lb. @ 11,000 rpm
Compression Ratio
12.3:1
12.3:1
Clutch
Assist and slipper
Assist and slipper
Fuel System
DFI® with 34 mm throttle valves (4)
DFI® with 34 mm throttle valves (4)
Ignition
TCBI with digital advance
TCBI with digital advance
Fuel Capacity
4 gal.
4 gal.

Operational

Frame
Trellis, high-tensile steel
Trellis, high-tensile steel
Front Suspension

37 mm inverted Showa fork with SFF-BP internals and spring preload adjustability

Wheel Travel - 4.7 in.

37 mm inverted Showa fork with SFF-BP internals and spring preload adjustability

Wheel Travel - 4.7 in.

Rear Suspension

Horizontal back-link, Showa BFRC lite gas-charged shock with piggyback reservoir, adjustable compression, rebound and spring preload

Wheel Travel - 4.9 in.

Horizontal back-link, Showa BFRC lite gas-charged shock with piggyback reservoir, adjustable compression, rebound and spring preload

Wheel Travel - 4.9 in.

Rake
23.5°
23.5°
Trail
3.8 in.
3.8 in.

Other

Additional Colors

Lime Green

Metallic Matte Graphenesteel Gray / Metallic Spark Black

Pearl Robotic White / Metallic Spark Black

Lime Green

Metallic Matte Graphenesteel Gray / Metallic Spark Black

Pearl Robotic White / Metallic Spark Black

Warranty
12 months limited
12 months limited

Features

Electronics

  • POWER DELIVERY: A choice of Full Power or Low Power allows you to set power delivery to suit your riding preference or current conditions. Full Power – Allows you to enjoy the unadulterated performance of the engine. Low Power – Prioritizes manageability by offering power delivery and throttle response that's optimized for less-than-perfect weather and/or road conditions.
  • CHOOSE YOUR MODE: All-inclusive modes that link Kawasaki TRaction Control (KTRC) and Power Modes allow you to easily set traction control and power delivery to suit a given riding situation. Sport – Enables you to enjoy sporty riding .Road – Covers a wide range of situations, from city riding to highway cruising and rural roads. Rain – Offers reassurance when riding on a wet road surface. Rider (Manual) – Each system can be manually adjusted independently.
  • KAWASAKI QUICK SHIFTER: The Ninja® ZX™-4RR supersport is equipped with a dual-direction quick shifter that enables clutchless upshifts and downshifts for seamless acceleration as well as quick and easy deceleration. This allows you to take even greater advantage of the exhilarating engine character.
  • KAWASAKI TRACTION CONTROL: Mode 1 – Least intrusive. Helps manage traction during cornering. Designed with sport riding in mind to facilitate acceleration out of corners. Mode 2 – Intervention occurs earlier. Offers a balance of sport riding support and enhanced confidence. Mode 3 – Most intrusive. When excessive wheelspin is detected, engine output is reduced to allow grip to be regained.

Ergonomics

  • SLIM DESIGN: The slim fuel tank allows for excellent contact with the bike. The low top of the fuel tank allows you to get into a tucked position.
  • ADJUSTABILITY & FEEL: The adjustable brake and clutch levers (5 available positions for each) allow you to tailor the lever position to suit your hand size and preference. Supersport-style aluminum footpegs offer a direct feel and good control when sport riding.
  • FIRM & COMFORTABLE: The firm, comfortable seat facilitates rider weight shift during sport or track riding.

Handling

  • SUPERSPORT-STYLE HANDLING: Designed using advanced dynamic rigidity analysis, this trellis frame delivers the required balance of strength and chassis flex to achieve nimble supersport-style handling.
  • BEST OF BOTH WORLDS: The 37mm inverted fork with SFF-BP internals of the Ninja® ZX™-4R supersport offers both racetrack performance and everyday usability. The Ninja® ZX™-4RR supersport front fork adds adjustable spring preload to further tailor performance to suit your preference.
  • CONFIDENCE-INSPIRING: The horizontal back-link rear suspension offers a firm, planted feel that is reassuring during sport riding while also providing ample bump absorption for ride comfort when riding around town. The Ninja® ZX™-4RR supersport is equipped with a highly adjustable Showa BFRC lite shock.
  • HIGH GRIP AND COMFORT: The 5-spoke star-pattern wheels and Dunlop GPR300 radial tires contribute to light, nimble handling, high grip, and excellent riding comfort.

Styling

  • SHARP & AGGRESSIVE: The aggressive full-fairing design emits a fierce aura of restrained power and explosive action, while the sharp chin spoiler contributes to the strong Ninja® family image.
  • CLEAR VIEW: The 4.3-in all-digital TFT color instrumentation gives the cockpit a high-tech, high-grade look. It features a Circuit Mode for lap timing and displays track-related information in a more prominent, easier-to-view layout.
  • CONNECTIVITY: Smartphone connectivity via RIDEOLOGY THE APP MOTORCYCLE† connects you with your bike like never before, allowing you to view vehicle info, a riding log, phone notifications, and general settings.
  • LIGHT THE WAY: Twin LED headlights, LED front turn signals, and an LED taillight help the Ninja® ZX™-4R and Ninja® ZX™-4RR supersport bikes stand out while also providing excellent illumination.

Supersport Power

  • HIGH-REVVING: The strong 399cc liquid-cooled 4-stroke in-line 4-cylinder engine delivers exhilarating performance and class-leading power to eclipse the rest of the 400cc field. Developed with feedback from other Kawasaki Ninja® ZX™ supersport machines, the engine's quick-revving nature and direct throttle response offer strong low- to mid-range torque for city riding and screaming high-rpm power ideal for sport or track riding.
  • EFFICIENT PERFORMANCE: A trademark feature of Ninja® ZX™ models, the ram air intake system features a central intake and side duct that work with a downdraft intake to improve cylinder-filling efficiency to deliver stellar engine performance.
  • PERFORMANCE & SOUND: The exhaust system configuration produces strong power output and features a long silencer for a clear, distinctive exhaust note that can only come from an in-line 4-cylinder Ninja® sportbike.
  • KEEP THE MOMENTUM: A racing-developed Assist & Slipper Clutch provides light clutch-lever pull and reduces back-torque when excessive engine braking occurs due to quick or unintended downshifts. This helps prevent rear tire hopping and skidding.

Electronics

  • POWER DELIVERY: A choice of Full Power or Low Power allows you to set power delivery to suit your riding preference or current conditions. Full Power – Allows you to enjoy the unadulterated performance of the engine. Low Power – Prioritizes manageability by offering power delivery and throttle response that's optimized for less-than-perfect weather and/or road conditions.
  • CHOOSE YOUR MODE: All-inclusive modes that link Kawasaki TRaction Control (KTRC) and Power Modes allow you to easily set traction control and power delivery to suit a given riding situation. Sport – Enables you to enjoy sporty riding .Road – Covers a wide range of situations, from city riding to highway cruising and rural roads. Rain – Offers reassurance when riding on a wet road surface. Rider (Manual) – Each system can be manually adjusted independently.
  • KAWASAKI QUICK SHIFTER: The Ninja® ZX™-4RR supersport is equipped with a dual-direction quick shifter that enables clutchless upshifts and downshifts for seamless acceleration as well as quick and easy deceleration. This allows you to take even greater advantage of the exhilarating engine character.
  • KAWASAKI TRACTION CONTROL: Mode 1 – Least intrusive. Helps manage traction during cornering. Designed with sport riding in mind to facilitate acceleration out of corners. Mode 2 – Intervention occurs earlier. Offers a balance of sport riding support and enhanced confidence. Mode 3 – Most intrusive. When excessive wheelspin is detected, engine output is reduced to allow grip to be regained.

Ergonomics

  • SLIM DESIGN: The slim fuel tank allows for excellent contact with the bike. The low top of the fuel tank allows you to get into a tucked position.
  • ADJUSTABILITY & FEEL: The adjustable brake and clutch levers (5 available positions for each) allow you to tailor the lever position to suit your hand size and preference. Supersport-style aluminum footpegs offer a direct feel and good control when sport riding.
  • FIRM & COMFORTABLE: The firm, comfortable seat facilitates rider weight shift during sport or track riding.

Handling

  • SUPERSPORT-STYLE HANDLING: Designed using advanced dynamic rigidity analysis, this trellis frame delivers the required balance of strength and chassis flex to achieve nimble supersport-style handling.
  • BEST OF BOTH WORLDS: The 37mm inverted fork with SFF-BP internals of the Ninja® ZX™-4R supersport offers both racetrack performance and everyday usability. The Ninja® ZX™-4RR supersport front fork adds adjustable spring preload to further tailor performance to suit your preference.
  • CONFIDENCE-INSPIRING: The horizontal back-link rear suspension offers a firm, planted feel that is reassuring during sport riding while also providing ample bump absorption for ride comfort when riding around town. The Ninja® ZX™-4RR supersport is equipped with a highly adjustable Showa BFRC lite shock.
  • HIGH GRIP AND COMFORT: The 5-spoke star-pattern wheels and Dunlop GPR300 radial tires contribute to light, nimble handling, high grip, and excellent riding comfort.

Styling

  • SHARP & AGGRESSIVE: The aggressive full-fairing design emits a fierce aura of restrained power and explosive action, while the sharp chin spoiler contributes to the strong Ninja® family image.
  • CLEAR VIEW: The 4.3-in all-digital TFT color instrumentation gives the cockpit a high-tech, high-grade look. It features a Circuit Mode for lap timing and displays track-related information in a more prominent, easier-to-view layout.
  • CONNECTIVITY: Smartphone connectivity via RIDEOLOGY THE APP MOTORCYCLE† connects you with your bike like never before, allowing you to view vehicle info, a riding log, phone notifications, and general settings.
  • LIGHT THE WAY: Twin LED headlights, LED front turn signals, and an LED taillight help the Ninja® ZX™-4R and Ninja® ZX™-4RR supersport bikes stand out while also providing excellent illumination.

Supersport Power

  • HIGH-REVVING: The strong 399cc liquid-cooled 4-stroke in-line 4-cylinder engine delivers exhilarating performance and class-leading power to eclipse the rest of the 400cc field. Developed with feedback from other Kawasaki Ninja® ZX™ supersport machines, the engine's quick-revving nature and direct throttle response offer strong low- to mid-range torque for city riding and screaming high-rpm power ideal for sport or track riding.
  • EFFICIENT PERFORMANCE: A trademark feature of Ninja® ZX™ models, the ram air intake system features a central intake and side duct that work with a downdraft intake to improve cylinder-filling efficiency to deliver stellar engine performance.
  • PERFORMANCE & SOUND: The exhaust system configuration produces strong power output and features a long silencer for a clear, distinctive exhaust note that can only come from an in-line 4-cylinder Ninja® sportbike.
  • KEEP THE MOMENTUM: A racing-developed Assist & Slipper Clutch provides light clutch-lever pull and reduces back-torque when excessive engine braking occurs due to quick or unintended downshifts. This helps prevent rear tire hopping and skidding.