Naked Motorcycles
2025Kawasaki Z400
42 fields on record
The 2025 Kawasaki Z400 is a lightweight naked bike for newer riders and those moving up from a 125. Its liquid-cooled 399cc parallel twin makes 45 hp and 38 Nm through a six-speed gearbox. A low 785 mm seat, 165 kg wet weight and standard ABS make it easy to manage, and the economical riding indicator helps stretch the 14-litre tank.
- Capacity
- 399.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 165.0 kg
- Seat height
- 785 mm
- Power
- 45.0 HP (32.8 kW) @ 10000 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A lightweight middleweight naked built for commuting, city hopping and spirited weekend backroad rides, with enough legs for occasional short highway trips.
- Built for
- Nimble, playful and easygoing. The parallel-twin revs eagerly, brakes and ABS inspire confidence, and the flickable trellis-framed chassis rewards without overwhelming.
- Not ideal for
- Not for riders craving big-bore highway punch, long two-up touring, or any off-road use. Tall riders and those wanting relaxed cruising may find it small and buzzy.
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 usEngine
- Capacity
- 399.0 ccm
- Power
- 45.0 HP (32.8 kW) @ 10000 RPM
- Torque
- 38.0 Nm (3.9 kgf-m) @ 8000 RPM
- Engine type
- Parallel Twin, four-stroke
- Power/weight ratio
- 0.2727 HP/kg (wet)
- Bore x stroke
- 70.0 x 51.8 mm
- Compression
- 11.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCBI with digital advance
- Valves per cylinder
- 4
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Assist and slipper Clutch
Dimensions & weight
- Wheelbase
- 1369 mm
- Overall length
- 1989 mm
- Overall width
- 800 mm
- Overall height
- 1054 mm
- Seat height
- 785 mm
- Wet weight
- 165.0 kg
- Fuel capacity
- 14.00 litres
- Ground clearance
- 145 mm
- Oil capacity
- 2.00 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Trellis, high-tensile steel
- Front suspension
- Telescopic fork
- Rear suspension
- Uni-Trak® swingarm
- Front wheel travel
- 119 mm
- Rear wheel travel
- 130 mm
- Rake (fork angle)
- 24.5°
- Trail
- 91 mm
Brakes & wheels
- Front brakes
- Single disc. ABS
- Front brakes diameter
- 310 mm
- Rear brakes
- Single disc. ABS
- ABS
- Yes
- Front tyre
- 110/70-17M
- Rear tyre
- 150/60-17M
Other
- Color options
- Metallic Matte Graphenesteel Gray/Metallic Spark Black, Pearl Robotic White/Metallic Matte Graphenesteel Gray
- Warranty
- 12
- Comments
- Economical Riding Indicator.
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 | 2020 | 2022 | 2024 | 2025 | 2027 |
|---|---|---|---|---|---|
| Capacity | 399 cc | 399 cc | 399 cc | 399 cc | 399 cc |
| Seat height | 785 mm | 785 mm | 785 mm | 785 mm | 785 mm |
| Fuel capacity | 14 L | 14 L | 14 L | 14 L | 14 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 Z400?
The 2025 Kawasaki Z400 has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Kawasaki Z400 have?
The 2025 Kawasaki Z400 has a Power of 45.0 HP (32.8 kW) @ 10000 RPM.
How many gears does the Kawasaki Z400 have?
The 2025 Kawasaki Z400 has a Gearbox of 6-speed.
What is the torque of the Kawasaki Z400?
The 2025 Kawasaki Z400 has a Torque of 38.0 Nm (3.9 kgf-m or 28.0 ft.lbs) @ 8000 RPM.
How much does the Kawasaki Z400 weigh?
The 2025 Kawasaki Z400 has a Wet weight of 165.0 kg (363.8 pounds).
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