Kawasaki Ninja 400 vs KTM Duke 390 (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Kawasaki Ninja 400stacks up against the KTM Duke 390. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Kawasaki Ninja 400 | KTM Duke 390 |
|---|---|---|
| Model year | 2026 | 2025 |
| Price | $5,999 | — |
| Engine | 399 cc | 399 cc |
| Horsepower | 45 hp | — |
| Torque | 38 Nm | — |
| Weight | 168 kg | — |
| Seat height | 785 mm | — |
| Fuel capacity | 14.0 L | — |
| Fuel type | petrol | petrol |
| Transmission | 6-speed manual | — |
| Front brakes | Single 310mm disc | — |
| Rear brakes | Single 220mm disc | — |
| Tires | 110/70-17 front, 150/60-17 rear | Michelin®110/70 ZR17 54H / Michelin® 150/60 ZR17 66H |
Kawasaki Ninja 400 vs KTM Duke 390 — which should you buy?
Picking between the Kawasaki Ninja 400 and the KTM Duke 390 usually comes down to the numbers you care about most. On paper, the Kawasaki Ninja 400 brings 45 hp in a 168 kg package, while the KTM Duke 390 counters with its own power figure.
Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: