KTM Adventure 390 X vs Triumph Speed 400 Base (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the KTM Adventure 390 Xstacks up against the Triumph Speed 400 Base. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | KTM Adventure 390 X | Triumph Speed 400 Base |
|---|---|---|
| Model year | 2026 | 2026 |
| Price | $6,499 | $5,495 |
| Engine | 398 cc | 398 cc |
| Weight | 165 kg | 170 kg |
| Seat height | 825 mm | 790 mm |
| Fuel capacity | 14.0 L | 13.0 L |
| Fuel type | petrol | petrol |
| Transmission | Manual, 6 speed, Chain | Manual, 6 speed, Chain |
| Front brakes | Hydraulic Disc | Hydraulic Disc |
| Rear brakes | Hydraulic Disc | Hydraulic Disc |
| Tires | 100/90 R19 / 130/80 R17 | Metzeler Sportec M9RR: 110/70 R17 / Metzeler Sportec M9RR: 150/60 R17 |
KTM Adventure 390 X vs Triumph Speed 400 Base — which should you buy?
Picking between the KTM Adventure 390 X and the Triumph Speed 400 Base usually comes down to the numbers you care about most. On paper, the KTM Adventure 390 X brings its published horsepower in a 165 kg package, while the Triumph Speed 400 Base counters with its own power figure at 170 kg. On price, the Triumph Speed 400 Base has the lower MSRP.
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: