KAWASAKI Ninja 400 vs KAWASAKİ Ninja 250 SL
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Scores, summary & seat (optional) Estimates and auto text from specs — open if you want them.
Technical score (estimate)
Weighted mix of power, torque, power-to-weight, top speed and lighter weight within this comparison only. Not a real-world verdict — riding style and roads matter.
Usage fit (estimate)
Rough scores for city riding, touring, sporty riding and new riders — mix of specs and bike category. Same caveats as the technical score: traffic, skill and tyres matter.
City / commute
Touring / long rides
Sporty riding
New rider friendly
Seat height (cm)
Figures are as in the database; boots, suspension sag and road surface change how tall the bike feels.
- KAWASAKI Ninja 400 78.5 cm Lowest seat here
- KAWASAKİ Ninja 250 SL 79.5 cm Tallest seat here
Spread in this comparison: about 1 cm.
Rough guide: comfortable flat-foot reach often needs inseam roughly in the same ballpark as seat height (varies a lot by ergonomics).
Auto summary from specs
Generated from the numbers in the comparison — not a review.
- Power spans 28 hp (KAWASAKİ Ninja 250 SL) up to 45 hp (KAWASAKI Ninja 400).
- Torque spans 22.6 Nm (KAWASAKİ Ninja 250 SL) up to 37.2 Nm (KAWASAKI Ninja 400).
- Weight spans 163 kg (KAWASAKİ Ninja 250 SL) to 168 kg (KAWASAKI Ninja 400).
- Displacement spans 250 cc (KAWASAKİ Ninja 250 SL) to 400 cc (KAWASAKI Ninja 400).
All values look the same; turn off the filter.
| Specification | KAWASAKI Ninja 400 | KAWASAKİ Ninja 250 SL |
|---|---|---|
| Brand | KAWASAKI | KAWASAKI |
| Model | KAWASAKI Ninja 400 | KAWASAKİ Ninja 250 SL |
| Engine size | 400cc | 250cc |
| Power | 45hp | 28hp |
| Torque | 37.2nm. | 22.6nm. |
| Cylinders / valves | Twin cylinder, 8 valves | Single cylinder, 4 valves |
| Weight | 168kg | 163kg |
| Front brake | 310 mm petal discs. Single balanced actuation dual-piston caliper. | Single-sided, dual-piston, single semi-floating ø310 mm petal disc |
| Rear brake | 220 mm single petal disc. Dual-piston caliper. | ø220 mm petal disc, Dual-piston |
| Seat height (cm) | 78.5cm | 79.5cm |
| Front tyre | 110/70R17 | 110/70-17M/C 54H |
| Rear tyre | 150/60R17 | 140/70-17M/C 66H |
| Cooling | Liquid cooling | Liquid cooling |
| Front suspension | 41mm telescopic fork | ø41 mm telescopic fork, 120 mm |
| Rear suspension | Bottom-Link Uni-Trak, gas-charged, preload adjustable | Bottom-link Uni-Trak, gas-charged shock with adjustable spring preload, 130 mm |
| Motorcycle type | Supersport | Supersport |
| Top speed | 205km/h | 172km/h |
| Fuel capacity / consumption | 14 L – 4 L/100km | 14 L – 4 L/100km |
| Service network | ||
| Service quality | ||
| Parts availability | ||
| Price | $5899 | $4000 |
| Brand price lists | View KAWASAKI price list | View KAWASAKI price list |
| Extra features | -Slipper Clutch -Economic Riding Indicator |
Opinions
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2023 KAWASAKI Ninja 400 vs 2023 KAWASAKİ Ninja 250 SL: listed specifications
The 2023 KAWASAKI Ninja 400 and 2023 KAWASAKİ Ninja 250 SL differ on the listed specifications: the Ninja 400 has more displacement, peak power and torque, and the higher listed top speed, and the KAWASAKİ Ninja 250 SL has a lower listed weight.
Engine displacement
Ninja 400 has a clearly larger listed engine displacement (400 cc vs 250 cc).
Peak power
Ninja 400 has a clear listed power advantage (45 hp vs 28 hp).
Torque
Ninja 400 has a clear listed torque advantage (37.2 Nm vs 22.6 Nm).
Listed top speed
Ninja 400 has a clear listed top-speed advantage (205 km/h vs 172 km/h).
Cooling
Both motorcycles are listed as liquid-cooled.
Weight and seat height
KAWASAKİ Ninja 250 SL has a modest listed weight advantage (163 kg vs 168 kg). Ninja 400 and KAWASAKİ Ninja 250 SL have very similar seat heights (78.5 cm vs 79.5 cm).
Conclusion
The measurable differences are therefore concentrated in displacement, peak power, torque, listed top speed and weight, while seat height remains relatively close.
Frequently asked questions
What is the top speed of KAWASAKI Ninja 400 vs KAWASAKİ Ninja 250 SL?
KAWASAKI Ninja 400 is listed at 205 km/h (127 mph) vs 172 km/h (107 mph) for KAWASAKİ Ninja 250 SL.
Which has more horsepower, KAWASAKI Ninja 400 or KAWASAKİ Ninja 250 SL?
KAWASAKI Ninja 400 has 45 hp compared with 28 hp on the KAWASAKİ Ninja 250 SL.
Which is lighter, KAWASAKI Ninja 400 or KAWASAKİ Ninja 250 SL?
KAWASAKİ Ninja 250 SL is lighter at 163 kg vs 168 kg for KAWASAKI Ninja 400.
Which is better, KAWASAKI Ninja 400 or KAWASAKİ Ninja 250 SL?
It depends on your riding style. Compare top speed, weight, fuel use and price in the table on this page, then vote for the bike you prefer.
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