KTM SMC 390 R vs Triumph Thruxton 400 (2026)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the KTM SMC 390 Rstacks up against the Triumph Thruxton 400. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecKTM SMC 390 RTriumph Thruxton 400
Model year20262026
Price$6,049$6,295
Engine398 cc398 cc
Weight154 kg183 kg
Seat height860 mm795 mm
Fuel capacity9.0 L13.0 L
Fuel typepetrolpetrol
TransmissionManual, 6 speed, ChainManual, 6 speed, Chain
Front brakesDiscHydraulic Disc
Rear brakesDiscHydraulic Disc
TiresMichelin® Power 6 110/70 R17 / Michelin® Power 6 150/60 R17Pirelli® Diablo Rosso IV: 110/70 R17 / Pirelli® Diablo Rosso IV: 150/60 R17

KTM SMC 390 R vs Triumph Thruxton 400 — which should you buy?

Picking between the KTM SMC 390 R and the Triumph Thruxton 400 usually comes down to the numbers you care about most. On paper, the KTM SMC 390 R brings its published horsepower in a 154 kg package, while the Triumph Thruxton 400 counters with its own power figure at 183 kg. On price, the KTM SMC 390 R 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: