New Delhi
2025 KTM 390 Duke vs Triumph Speed 400: Full Comparison 2025
by | 12 Sep 2025
The 2025 KTM 390 Duke vs Triumph Speed 400 duel pits two leading 400cc singles against each other in India’s premium naked/roadster space. The Duke 390 stands out as the streetfighter with aggressive styling and high-tech performance, while the Speed 400 brings neo-retro charm, comfort, and a polished ride. If you’re weighing which 400cc naked bike to invest in, this comparison will help you see exactly what each offers in power, features, handling and price.
Key Specs Comparison
| Specification | KTM 390 Duke (2025) | Triumph Speed 400 (2025) |
| Engine | 398.63 cc, liquid-cooled, DOHC, single-cylinder | 398.15 cc, liquid-cooled, DOHC, single-cylinder |
| Max Power | 46 PS @ 8,500 rpm | 40 PS @ 8,000 rpm |
| Max Torque | 39 Nm @ 6,500 rpm | 37.5 Nm @ 6,500 rpm |
| Gearbox | 6-speed with slipper clutch & quickshifter | 6-speed with slipper clutch |
| Kerb Weight | ~165 kg | ~176 kg |
| Mileage (Claimed) | 28.9 – 30 kmpl | ~30 kmpl |
| Brakes | 320 mm front disc, 240 mm rear disc, dual-channel ABS | 300 mm front disc, 230 mm rear disc, dual-channel ABS |
| Ex-Showroom, Delhi | ₹2.95–2.97 lakh | ₹2.50 lakh (approx) |
Engine & Performance
The 390 Duke produces more peak power and torque, giving it sharper acceleration and a stronger top-end. The Speed 400, while slightly down on power, is smoother in delivery and tuned for everyday usability. Both use modern liquid-cooled DOHC singles but the KTM’s aggressive map favors spirited riding.
Chassis & Handling
The Duke uses a steel trellis frame and WP APEX suspension, offering full adjustability and lighter kerb weight, making it agile and track-ready. The Speed 400’s perimeter frame and big-piston fork setup are more comfort-oriented, with a planted feel for city and highway runs, albeit with more weight.
Technology & Features
KTM equips the 390 Duke with a TFT display, multiple ride modes, launch control, cornering ABS, and traction control — a tech-heavy package. Triumph’s Speed 400 keeps it simple with LED lighting, traction control, dual-channel ABS, and a semi-digital cluster, prioritizing retro-modern appeal over high-tech.
Price & Value Proposition
At nearly ₹50,000 more expensive, the Duke 390 is positioned as the premium, high-performance streetfighter. The Speed 400, however, delivers excellent everyday practicality, refinement, and style at a more accessible price point.
Conclusion
If you want cutting-edge performance, aggressive dynamics, and advanced rider aids, the 2025 KTM 390 Duke is unmatched in its class. On the other hand, for riders prioritizing comfort, affordability, and neo-retro character, the Triumph Speed 400 offers superb value without compromising core performance.
In essence, the Duke 390 is built for thrill-seekers, while the Speed 400 is crafted for practical enthusiasts who value style and everyday usability. Both excel in their own ways — your choice depends on whether you ride for adrenaline or for all-round ease.
