Compare the Triumph Thruxton 400 and Speed 400: discover the top differences in design, ergonomics, engine performance, suspension, and ride feel.
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1. Design & Riding Posture
The Thruxton 400 embodies a café-racer aesthetic with half fairing, clip-on handlebars, bar-end mirrors, and a single seat with rear cowl, encouraging a sporty, forward-leaning stance. In contrast, the Speed 400 favors a cleaner, upright rider position, better suited for everyday commuting.
2. Dimensions & Ergonomics
Though they share the same frame, the Thruxton has a slightly shorter wheelbase (~10 mm) and lower ground clearance (158 mm vs 165 mm). It’s also a bit heavier—about 2–4 kg more. The riding controls on the Thruxton are more aggressive: handlebars are around 40 mm narrower and 246 mm lower; footpegs are placed 86 mm back and 27 mm higher.
3. Engine Output & Performance
Both bikes use the same 398 cc liquid-cooled single-cylinder engine, but the Thruxton delivers ~41 bhp at 9,000 rpm, while the Speed offers around 40 bhp at 8,000 rpm. Torque remains the same (~37.5 Nm), though the Thruxton peaks slightly higher up the rev range.
4. Suspension & Tyres
Both feature USD front forks and a mono-shock rear with similar suspension setups, but the Thruxton gets 10 mm more travel, enhancing ride comfort and handling. They ride on identical 17-inch alloy wheels, but tyre profiles differ: the Thruxton wears 110/70 R17 (front) and 150/60 R17 (rear), while the Speed uses taller 110/80 R17 and 150/70 R17 tyres.
5. Styling Details & Features
The Thruxton gains café-racer highlights like a remote brake reservoir, blacked-out upside-down forks, and a sharper fuel tank look. It’s offered in four dual-tone schemes like Lava Red/Silver and Racing Yellow/Silver. While the Speed 400 retains its street-naked simplicity, the Thruxton adds a premium touch with these cosmetic and colour upgrades.
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Final Thoughts — Which One’s for You?
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Choose the Thruxton 400 if you prioritize retro café-racer styling, an engaging riding stance, and a subtle performance edge.
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Go for the Speed 400 if you want a more relaxed, commuter-friendly ride that's slightly lighter and practical for everyday use.