The Speed 400 brings Triumph’s unmistakable stripped back custom style, agile handling, responsive performance, and category-defining build quality to a new class of rider.

Style and DNA

From the classic engine profile and sculpted fuel tank to the premium paint finish, the Speed 400’s stripped back modern custom style and timeless silhouette is unmistakably Triumph.

Premium Finish

Trademark black powder-coated engine casings, tough gold anodized forks, high-quality paint, and exquisite detailing ensure the finish on the Speed 400 is premium throughout.

TR-Series Engine

The all-new TR-Series engine combines the latest technology with modern classic aesthetics to deliver class-beating performance, Triumph’s signature characterful and rewarding feel, and an unmistakable exhaust note.

Chassis & Suspension

The all-new dedicated frame and high-quality suspension deliver neutral, confidence-inspiring handling, and the perfect riding position for a fun and engaging ride for new and experienced riders alike.

Rider Ergonomics

The Speed 400 is a great fit for riders of all sizes. Thanks to its lean standover, the engaging and natural riding position blends comfort with assured, feet-down maneuvering.

Wheels and Tires

Lightweight, 10-spoke, 17-inch cast aluminum wheels contribute to the Speed 400’s agile handling and premium brand tires provide confidence in all conditions.

Brakes

Responsive and confident braking performance comes courtesy of twin-piston radial calipers and floating disc, complete with braided brake lines and Bosch ABS.

Technology

The Speed 400 is packed with modern rider-focused technology to enhance every ride, including switchable traction control, torque-assist clutch, Bosch ABS, LED lighting, and all-new dual format instruments.

Security

The Speed 400 is equipped with a steering lock and anti-theft immobilizer as standard. A unique security chip is integrated into the ignition key to ensure only the owner can start the engine.

Value

With class-leading specification, quality, and performance with low running costs, a 10,000-mile service interval and a two-year unlimited mileage warranty — the Speed 400 offers incredible value.

Specification

Engine & Transmission

Type - Liquid-cooled, 4 valve, DOHC, single-cylinder

Capacity - 398.15 cc

Bore - 89.0

Stroke - 64.0

Compression - 12:1

Max Power EC - 39.5 HP (40PS) @ 8,000 RPM

Max Torque EC - 27.7 ft lb @ 6,500 rpm

System - Bosch electronic fuel injection with electronic throttle control

Exhaust - Stainless twin-skin header system with stainless steel silencer

Final Drive - X-ring chain

Clutch - Wet, multi-plate, slip

Gearbox - 6 speed

Chassis

Frame - Hybrid spine/perimeter, tubular steel, bolt-on rear subframe

Swingarm - Twin-sided, cast aluminum alloy

Front Wheel - Cast aluminum alloy 10 spoke, 17 x 3 in

Rear Wheel - Cast aluminum alloy 10 spoke, 17 x 4 in

Front Tire - 110/70 R17

Rear Tire - 150/60 R17

Front Suspension - 43mm upside down Big Piston forks. 140mm wheel travel

Rear Suspension - Gas monoshock RSU with external reservoir and pre-load adjustment. 130mm wheel travel

Front Brakes - 300mm fixed disc, four-piston radial caliper, ABS

Rear Brakes - 230mm fixed disc, floating caliper, ABS

Instrument Display and Functions - Analogue speedometer with integrated multi-function LCD screen

Dimensions & Weights

Width Handlebars - 32.05 in (814 mm)

Height - Without Mirror 42.68 (1084mm)

Seat Height - 31.10 in (790 mm)

Wheelbase - 54.21 in (1377 mm)

Rake - 24.6 degree

Trail - 4.02 in (102 mm)

Tank Capacity - 3.43 US gal (13 litres)

Wet Weight - 375 lb (170kg)

Fuel Consumption

CO2 Figures - EPA Procedure CO2 emissions and fuel consumption data are measured according to regulation 40 CFR Part 86 Subpart F. Figures for fuel consumption are derived from specific test conditions and are for comparative purposes only. They may not reflect real driving results.

Service

Service Interval - 10,000 miles (16,000km)/12 months (whichever comes first)