Sportbikes
2026Kawasaki Ninja 400 ZX 4R
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The 2026 Kawasaki Ninja 400 ZX 4R is a small-capacity sportbike built for riders who love to chase revs, with a screaming 399 cc in-line four that makes its 76 hp at 14,500 rpm. Trellis frame, Showa suspension and twin front discs give it genuine track-day credibility, while riding modes and smartphone connectivity keep it road-friendly.
- Capacity
- 399.0 ccm
- Engine
- In-line four, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 175.0 kg
- Seat height
- 800 mm
- Power
- 76.0 HP (57.0 kW) @ 14500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily for spirited canyon carving and track days, with the high-revving four-cylinder engine favoring high RPM performance over low-end torque.
- Built for
- A rev-happy, engaging small-displacement sportbike that channels genuine supersport character into an approachable, lightweight package.
- Not ideal for
- Not a good fit for riders seeking long-distance comfort, passenger touring, or any off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usRange and running costs
Worked out in your browser - nothing is sent to usBased on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 399.0 ccm
- Power
- 76.0 HP (57.0 kW) @ 14500 RPM
- CO2 Emissions
- 120 CO2 g/km
- Torque
- 39.0 Nm (4.0 kgf-m) @ 13000 RPM
- Engine type
- In-line four, four-stroke
- Fuel consumption
- 5.10 litres/100 km (19.6 km/l)
- Power/weight ratio
- 0.4343 HP/kg (dry)
- Bore x stroke
- 57.0 x 39.1 mm
- Compression
- 12.3:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCBI w/digital advance
- Valves per cylinder
- 4
- Lubrication system
- Forced lubrication, wet sump
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc, manual. Assist and Slipper.
Dimensions & weight
- Wheelbase
- 1380 mm
- Overall length
- 1990 mm
- Overall width
- 765 mm
- Overall height
- 1110 mm
- Seat height
- 800 mm
- Dry weight
- 175.0 kg
- Wet weight
- 189.0 kg
- Fuel capacity
- 15.00 litres
- Ground clearance
- 135 mm
Chassis & suspension
- Frame
- Trellis, high-tensile steel
- Front suspension
- 37mm inverted Showa fork with SFF-BP internals
- Rear suspension
- Horizontal back-link, Showa shock w/ adjustable spring preload
- Front wheel travel
- 120 mm
- Rear wheel travel
- 124 mm
- Rake (fork angle)
- 23.5°
- Trail
- 97 mm
Brakes & wheels
- Front brakes
- Double disc. 4-piston calipers. Optional ABS.
- Front brakes diameter
- 290 mm
- Rear brakes
- Single disc. Single-piston caliper. Optional ABS.
- Rear brakes diameter
- 220 mm
- ABS
- Optional
- Front tyre
- 120/70-ZR17
- Rear tyre
- 160/60-ZR17
Other
- Color options
- METALLIC SPARK BLACK
- Comments
- Small windscreen. Integrated Riding Modes. Power Mode Selection. Economical Riding Indicator. Smartphone connectivity.
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2025 | 2026 |
|---|---|---|
| Capacity | 399 cc | 399 cc |
| Dry weight | 175 kg | 175 kg |
| Seat height | 800 mm | 800 mm |
| Fuel capacity | 15 L | 15 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Kawasaki Ninja 400 ZX 4R?
The 2026 Kawasaki Ninja 400 ZX 4R has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Kawasaki Ninja 400 ZX 4R have?
The 2026 Kawasaki Ninja 400 ZX 4R has a Power of 76.0 HP (57.0 kW) @ 14500 RPM.
How many gears does the Kawasaki Ninja 400 ZX 4R have?
The 2026 Kawasaki Ninja 400 ZX 4R has a Gearbox of 6-speed.
What is the torque of the Kawasaki Ninja 400 ZX 4R?
The 2026 Kawasaki Ninja 400 ZX 4R has a Torque of 39.0 Nm (4.0 kgf-m or 28.8 ft.lbs) @ 13000 RPM.
How much does the Kawasaki Ninja 400 ZX 4R weigh?
The 2026 Kawasaki Ninja 400 ZX 4R has a Dry weight of 175.0 kg (385.8 pounds).
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