Suzuki GS 400 E vs KTM Duke 390 (2025)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Suzuki GS 400 Estacks up against the KTM Duke 390. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Suzuki GS 400 E | KTM Duke 390 |
|---|---|---|
| Model year | 1981 | 2025 |
| Price | — | — |
| Engine | 398 cc | 399 cc |
| Horsepower | 27 hp | — |
| Fuel capacity | 3.7 L | — |
| Fuel type | petrol | petrol |
| Transmission | 6-speed | — |
| Front brakes | Single disc | — |
| Rear brakes | Expanding brake | — |
| Tires | 3.00-18 / 3.50-18 | Michelin®110/70 ZR17 54H / Michelin® 150/60 ZR17 66H |
Suzuki GS 400 E vs KTM Duke 390 — which should you buy?
Picking between the Suzuki GS 400 E and the KTM Duke 390 usually comes down to the numbers you care about most. On paper, the Suzuki GS 400 E brings 27 hp, 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: