The Triumph Thruxton 400 marks the return of one of motorcycling's most iconic nameplates, now reimagined in an accessible, modern form. The Thruxton name traces its roots to the legendary British airfield that hosted the famous "Thruxton 500 Miles" race in the 1960s, where Triumph Bonnevilles dominated the podium. The new Thruxton 400 preserves that sporting spirit while bringing it firmly into the era of the modern lightweight motorcycle.
At the heart of the bike is an upgraded version of the 398cc TR-Series single-cylinder engine, developed in partnership with Indian manufacturer Bajaj. Thanks to revised intake camshafts and updated fuel mapping, this engine produces 41.4 HP at 9,000 rpm and a maximum torque of 37.5 Nm at 7,500 rpm – a 5% power increase over the Speed 400 and Scrambler 400 X. The engine's higher-revving character rewards riders who enjoy keeping the revs up, perfectly complementing the bike's sportier personality.
The chassis has been purpose-built for the Thruxton 400, delivering a sharper, more responsive feel than the rest of the 400 range. 43mm inverted USD Big Piston forks with 135mm of travel, paired with a preload-adjustable gas monoshock at the rear, provide precise and confident handling. The braking system features a ByBre 4-piston radial caliper on a 300mm front disc with ABS, ensuring strong and progressive stopping power, while Pirelli Diablo Rosso IV tyres deliver outstanding grip on tarmac.
The ergonomics are fully tailored to the café racer riding position: clip-on handlebars sit 246mm lower and 40mm narrower than those on the Speed 400, rotating the rider forward into the characteristic crouched posture. The rear-set footpegs are positioned 86mm further back and 27mm higher. This riding stance, combined with a shortened rear fender, an upswept sport exhaust, and bar-end mirrors, makes the Thruxton 400 the most visually and ergonomically focused machine in the entire Triumph 400 lineup. Equipment includes full LED lighting with a classic round headlight, an analogue speedometer with LCD readout, a USB-C charging port, ABS, and switchable traction control as standard. Available from March 2026.
| Engine & Performance | |
| Engine type: | Single-cylinder, 4-stroke, 4-valve – Double overhead camshaft (DOHC) |
| Cooling: | Liquid-cooled |
| Fuel injection: | Electronic (EFI) – Ride-by-wire |
| Engine displacement: | 398 cc |
| Maximum power: | 41.4 HP (30.9 kW) @ 9,000 rpm |
| Maximum torque: | 37.5 Nm @ 7,500 rpm |
| Starting: | Electric |
| Transmission: | 6-speed, chain final drive |
| Clutch: | Assist and slipper clutch |
| Dimensions & Weight | |
| Width: | 775 mm |
| Height: | 1,110 mm |
| Wheelbase: | 1,376 mm |
| Seat height: | 795 mm |
| Wet weight: | 176 kg |
| Fuel tank capacity: | 13 l |
| Suspension | |
| Front suspension: | 43 mm inverted USD Big Piston forks with 135 mm of travel |
| Rear suspension: | Gas mono-shock (RSU) with external reservoir and preload adjustment – 130 mm wheel travel |
| Braking System | |
| Front brake: | Ø 300 mm disc, 4-piston radial ByBre caliper, ABS |
| Rear brake: | Ø 230 mm disc, single-piston floating caliper, ABS |
| Safety systems: | ABS, switchable traction control |
| Wheels & Tyres | |
| Front wheel: | 17" cast aluminium |
| Rear wheel: | 17" cast aluminium |
| Front tyre: | 110/70 R17 – Pirelli Diablo Rosso IV |
| Rear tyre: | 150/60 R17 – Pirelli Diablo Rosso IV |
| Equipment | |
| Full LED lighting (round headlight) | |
| Analogue speedometer with LCD display (tachometer, fuel level, gear position) | |
| USB-C charging port | |
| Clip-on handlebars (café racer riding position) | |
| Upswept sport exhaust silencer | |
| Monza-style flip-up fuel cap | |
| Bar-end mirrors | |
| Frame | |
| Tubular steel frame with bolt-on rear subframe | |
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