Triumph Thruxton 400 vs KTM Adventure 390 R (2026)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Triumph Thruxton 400stacks up against the KTM Adventure 390 R. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Triumph Thruxton 400 | KTM Adventure 390 R |
|---|---|---|
| Model year | 2026 | 2026 |
| Price | $6,295 | $7,699 |
| Engine | 398 cc | 398 cc |
| Weight | 183 kg | 165 kg |
| Seat height | 795 mm | 870 mm |
| Fuel capacity | 13.0 L | 14.0 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 | Pirelli® Diablo Rosso IV: 110/70 R17 / Pirelli® Diablo Rosso IV: 150/60 R17 | Mitas Enduro Trail E07+ 90/90 R21 / Mitas Enduro Trail E07+ 140/80 R18 |
Triumph Thruxton 400 vs KTM Adventure 390 R — which should you buy?
Picking between the Triumph Thruxton 400 and the KTM Adventure 390 R usually comes down to the numbers you care about most. On paper, the Triumph Thruxton 400 brings its published horsepower in a 183 kg package, while the KTM Adventure 390 R counters with its own power figure at 165 kg. On price, the Triumph Thruxton 400 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: