KAWASAKI Ninja 400 vs KTM 390 DUKE
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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
- KTM 390 DUKE 83 cm Tallest seat here
Spread in this comparison: about 4.5 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 44 hp (KTM 390 DUKE) up to 45 hp (KAWASAKI Ninja 400).
- Torque spans 37 Nm (KTM 390 DUKE) up to 37.2 Nm (KAWASAKI Ninja 400).
- Weight spans 149 kg (KTM 390 DUKE) to 168 kg (KAWASAKI Ninja 400).
- Engine sizes are very close.
All values look the same; turn off the filter.
| Specification | KAWASAKI Ninja 400 | KTM 390 DUKE |
|---|---|---|
| Brand | KAWASAKI | KTM |
| Model | KAWASAKI Ninja 400 | KTM 390 DUKE |
| Engine size | 400cc | 400cc |
| Power | 45hp | 44hp |
| Torque | 37.2nm. | 37nm. |
| Cylinders / valves | Twin cylinder, 8 valves | Single cylinder, 4 valves |
| Weight | 168kg | 149kg |
| Front brake | 310 mm petal discs. Single balanced actuation dual-piston caliper. | Four-piston radial fixed calliper, brake disc |
| Rear brake | 220 mm single petal disc. Dual-piston caliper. | Single-piston floating calliper, brake disc |
| Seat height (cm) | 78.5cm | 83cm |
| Front tyre | 110/70R17 | 110/70 17 |
| Rear tyre | 150/60R17 | 150/60 17 |
| Cooling | Liquid cooling | Liquid cooling |
| Front suspension | 41mm telescopic fork | WP APEX 43 |
| Rear suspension | Bottom-Link Uni-Trak, gas-charged, preload adjustable | WP APEX - Monoshock |
| Motorcycle type | Supersport | Naked |
| Top speed | 205km/h | 170km/h |
| Fuel capacity / consumption | 14 L – 4 L/100km | 13.4 L – 3.5 L/100km |
| Service network | ||
| Service quality | ||
| Parts availability | ||
| Price | $5899 | $5899 |
| Brand price lists | View KAWASAKI price list | View KTM price list |
| Extra features | -Slipper Clutch -Economic Riding Indicator |
-TFT Display, slipper clutch |
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2023 KAWASAKI Ninja 400 vs 2023 KTM 390 DUKE: listed specifications
The 2023 KAWASAKI Ninja 400 and 2023 KTM 390 DUKE are closely matched in peak power and torque, while the Ninja 400 has the higher listed top speed, and the 390 DUKE has a lower listed weight.
Engine displacement
Ninja 400 and 390 DUKE have very similar engine displacement (400 cc vs 400 cc).
Peak power
Ninja 400 and 390 DUKE have very similar peak power (45 hp vs 44 hp).
Torque
Ninja 400 and 390 DUKE have very similar listed torque (37.2 Nm vs 37 Nm).
Listed top speed
Ninja 400 has a clear listed top-speed advantage (205 km/h vs 170 km/h).
Cooling
Both motorcycles are listed as liquid-cooled.
Weight and seat height
390 DUKE is notably lighter on the listed weight (149 kg vs 168 kg). There is a noticeable listed seat-height difference: 390 DUKE is listed higher (83 cm) than Ninja 400 (78.5 cm).
Conclusion
The measurable differences are therefore concentrated in listed top speed, weight and seat height, while displacement, peak power and torque remain relatively close.
Frequently asked questions
What is the top speed of KAWASAKI Ninja 400 vs KTM 390 DUKE?
KAWASAKI Ninja 400 is listed at 205 km/h (127 mph) vs 170 km/h (106 mph) for KTM 390 DUKE.
Which has more horsepower, KAWASAKI Ninja 400 or KTM 390 DUKE?
KAWASAKI Ninja 400 has 45 hp compared with 44 hp on the KTM 390 DUKE.
Which is lighter, KAWASAKI Ninja 400 or KTM 390 DUKE?
KTM 390 DUKE is lighter at 149 kg vs 168 kg for KAWASAKI Ninja 400.
Which is better, KAWASAKI Ninja 400 or KTM 390 DUKE?
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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