There’s something deeply satisfying about a motorcycle that strips away the unnecessary and focuses purely on the joy of riding. The Triumph Speed 400 does exactly that — combining timeless British styling with modern performance and technology to create a roadster that’s as accessible as it is engaging. This is Triumph’s invitation to a whole new generation of riders, wrapped in a package that existing enthusiasts will absolutely appreciate.
At the heart of the Speed 400 sits Triumph’s all-new TR-Series engine — a 398cc single-cylinder unit that delivers 40PS and 37.5Nm of torque. Don’t let the modest figures fool you; this engine has been engineered to deliver class-beating performance with Triumph’s signature character and that unmistakeable exhaust note the brand is famous for. The power delivery is smooth and rewarding, making the Speed 400 responsive without being intimidating. At just 170kg wet, it feels lively and eager, whether you’re threading through city traffic or carving up a winding back road.
The Speed 400 punches well above its weight when it comes to technology. Switchable traction control gives you confidence in varied conditions, while the torque-assist clutch makes gear changes light and effortless. Bosch ABS on both the front four-piston radial caliper and rear floating disc provides reassuring stopping power. LED lighting ensures you’re seen, and the dual-format instruments — an analogue speedometer with an integrated LCD screen — give you all the information you need at a glance. There’s even a steering lock and anti-theft immobiliser as standard.
From the classic engine profile and sculpted fuel tank to the premium paint finish, the Speed 400’s stripped-back modern custom style is unmistakably Triumph. Black powder-coated engine casings and tough gold anodised forks give it a premium edge, while the lightweight 10-spoke cast aluminium wheels add to the bike’s agile handling and clean aesthetic. Every detail has been considered, from the slender waistline that makes manoeuvring easy to the timeless silhouette that will look good for decades.
The Speed 400 is designed to be a great fit for riders of all sizes and experience levels. The 790mm seat height and natural riding position blend comfort with control, making it ideal for newer riders building confidence and experienced riders seeking something pure and engaging. With low running costs, a generous 10,000-mile service interval, and a two-year unlimited mileage warranty, it represents incredible value. This is a future legend — approachable, capable, and thoroughly rewarding.
| Type | Liquid-cooled, 4 valve, DOHC, single-cylinder | Capacity | 398.15 cc |
| Bore | 89.0 mm | Stroke | 64.0 mm |
| Compression | 12:1 | Max Power EC | 40 PS / 39.5 bhp (29.4 kW) @ 8,000 rpm |
| Max Torque EC | 37.5 Nm @ 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 & assist | Gearbox | 6 speed |
| Frame | Hybrid spine/perimeter, tubular steel, bolt-on rear subframe | Swingarm | Twin-sided, cast aluminium alloy |
| Front Wheel | Cast aluminium alloy 10 spoke, 17 x 3 in | Rear Wheel | Cast aluminium alloy 10 spoke, 17 x 4 in |
| Front Tyre | 110/70 R17 | Rear Tyre | 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 | Width Handlebars | 814 mm |
| Height Without Mirror | 1084 mm | Seat Height | 790 mm |
| Wheelbase | 1377 mm | Rake | 24.6 º |
| Trail | 102 mm | Tank Capacity | 13 L |
| Wet Weight | 170 kg | Fuel Consumption | 3.5L/100km (80.7 mpg) |
| CO2 Figures | 83.8 g/km EURO 5 CO2 emissions and fuel consumption data are measured according to regulation 168/2013/EC. Figures for fuel consumption are derived from specific test conditions and are for comparative purposes only. They may not reflect real driving results. | Service Interval | 10,000 miles (16,000km)/12 months (whichever comes first) |
