Triumph Thruxton 400 vs KTM 390 SMC R: Which Wins in 2025?

In 2025, the Triumph Thruxton 400 vs KTM 390 SMC R showdown presents a clash between a modern cafe racer and a supermoto street weapon. The Thruxton 400, launched by Triumph India, brings classic styling married to the TR-series 398 cc engine. Meanwhile, the KTM 390 SMC R emerges on the global stage as a 399 cc supermoto offering from KTM’s stable. Which one offers more for the urban rider or weekend enthusiast? Let’s dig into how they stack up on paper and in real life.

Engine & Performance

• The Thruxton 400 is powered by a 398 cc liquid-cooled single, tuned to produce around 42 PS at 9,000 rpm and 37.5 Nm at 7,500 rpm.
• The KTM 390 SMC R, on the other hand, uses the familiar 399 cc KTM LC4 single, quoted for ≈ 45 PS and ≈ 39 Nm, with a 6-speed gearbox.
• In real-world usage, KTM’s motor has more overhead, making for sharper throttle response. But Triumph’s tuning aims for smoothness and usability in everyday traffic.

Chassis & Handling

• The Thruxton 400 borrows the platform of the Speed 400 but with changes: a lower clip-on bar setup, a slightly heavier kerb weight (~183 kg), and a shorter wheelbase for sharper handling.
• KTM’s 390 SMC R uses a lightweight supermoto geometry — upright, agile, with nimble cornering. Its wheel setup (17" spoked) and suspension are tuned for quick changes of direction.
• In city traffic, KTM’s posture and turnability will likely feel more agile. Thruxton’s leaner style may demand more in bends.

Technology & Features

• Triumph packs in ride-by-wire, switchable traction control, dual-channel ABS, and a classic analog-digital instrument cluster.
• KTM’s 390 SMC R is expected to come with cornering ABS, ride modes, full LED lighting, modern display and a sporty electronic aid suite inherited from KTM’s 390 line.
• In design, Thruxton leans hard into cafe racer style — low bars, elongated tank, twin-pod styling. KTM embraces bold supermoto aesthetics: minimal plastics, muscular stance, exposed trellis frame touches.

Comparison

Conclusion

The Triumph Thruxton 400 vs KTM 390 SMC R matchup is a study in contrasts. Thruxton 400 delivers classic cafe racer style with usable street performance and premium finish, making it ideal for riders who value character and everyday usability. KTM 390 SMC R, meanwhile, promises sharper performance, aggressive handling, and full-fledged electronic aids — perfect for those craving sport-first dynamics in traffic and twisties.

If you prioritize style, a curated ride experience, and refined urbane presence, the Thruxton 400 wins hearts. If your focus is on snappy performance, nimble agility, and aggressive supermoto behavior, the KTM 390 SMC R likely edges ahead. In India’s 400 cc space, both bikes offer compelling value — but your riding style will determine which champion is right for you.