2026Triumph Thruxton 400

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The 2026 Triumph Thruxton 400 is a modern retro middleweight that appeals to riders seeking stylish, manageable performance with authentic café racer character. Its 398cc liquid-cooled engine delivers 41.4 bhp with accessible torque, making it ideal for commuters and enthusiasts transitioning to larger bikes. Known for nimble handling and vintage aesthetics, it combines classic British design with contemporary technology.

Capacity: 398.0 ccm
Engine: Single, four-stroke
Gearbox: 6-speed
Dry weight: Not on record
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Seat height: 795 mm
Power: 41.4 HP (30.9 kW) @ 9000 RPM

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How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail15%

Cornering78%

City riding75%

Daily riding65%

Touring40%

Two-up35%

Track40%

Best for: Built for spirited weekend rides and stylish urban commuting rather than outright speed or distance touring.
Built for: A charismatic, torquey single with cafe-racer styling that rewards revving it out and flicking it through corners.
Not ideal for: Not ideal for riders wanting high-speed highway touring, pillion comfort, or any off-road capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 795mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2026 Triumph Thruxton 400, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine

Capacity: 398.0 ccm
Power: 41.4 HP (30.9 kW) @ 9000 RPM
CO2 Emissions: 84 CO2 g/km
EPA Certificate No.: TTDXC.400INT-021
EPA Est. Fuel Consumption: 3.57 L/100km (65.9 US mpg)
EPA CO Emissions: 1.0 CO g/km
Torque: 37.5 Nm (3.8 kgf-m) @ 7500 RPM
Engine type: Single, four-stroke
Compression: 12.0:1
Fuel system: Injection
Aspiration: Naturally aspirated
Valves per cylinder: 4

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multi-plate, slip & assist

Dimensions & weight

Wheelbase: 1376 mm
Overall length: 2042 mm
Seat height: 795 mm
Dry weight: Not on record - add it

Chassis & suspension

Frame: Hybrid spine/perimeter, tubular steel, bolt-on rear subframe
Front suspension: 43 mm upside down Big Piston forks. 135mm wheel travel
Rear suspension: Gas monoshock RSU with external reservoir and pre-load adjustment. 5.1 in. (130mm) wheel travel
Rake (fork angle): 24.5°
Trail: 102 mm
Rake: 24.5deg

Brakes & wheels

Front brakes: Single 11.9 in (300mm) fixed disc, four-piston radial caliper, ABS
Rear brakes: Single 9.1 in. (230mm) fixed disc, single piston floating caliper, ABS
ABS: Yes
Front tyre: 110/70 R17
Rear tyre: 150/60 R17