The Triumph Speed 400 joins the modern classic range for the 2024 model year. Its 398.15 cc single-cylinder engine combines liquid cooling, electronic fuel injection and a six-speed transmission. A tubular steel frame carries 17-inch wheels, a 43 mm upside-down fork and a preload-adjustable rear monoshock. The standard seat height is 790 mm, with a stated running-order mass of 170 kg.
Technical specifications:
Make Model: Triumph Speed 400
| Year | 2024 |
|---|---|
| Engine | Four-stroke single-cylinder, DOHC, 4 valves |
| Capacity | 398.15 cc |
| Bore x Stroke | 89.0 x 64.0 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 12.0:1 |
| Induction | Bosch electronic fuel injection, electronic throttle |
| Max Power | 29.4 kW / 40 PS @ 8000 rpm |
| Max Torque | 37.5 Nm @ 6500 rpm |
| Clutch | Wet multiplate, slip/assist |
| Transmission | 6 Speed |
| Final Drive | X-ring chain |
| Frame | Tubular steel spine/perimeter, bolted rear subframe |
| Front Suspension | 43 mm upside-down Big Piston fork |
| Front Wheel Travel | 140 mm |
| Rear Suspension | Gas monoshock, external reservoir, adjustable preload |
| Rear Wheel Travel | 130 mm |
| Front Brakes | Single 300 mm disc, four-piston radial caliper, ABS |
| Rear Brakes | Single 230 mm disc, floating caliper, ABS |
| Front Tyre | 110/70 R17 |
| Rear Tyre | 150/60 R17 |
| Dimensions | Length 2056 mm; handlebar width 795 mm; height 1075 mm without mirrors |
| Wheelbase | 1377 mm |
| Seat Height | 790 mm |
| Wet Weight | 170 kg (running order, 90% fuel) |
| Fuel Capacity | 13 Litres |
Market: Europe. Manufacturer specifications; equipment can vary by market.
Related Links: Triumph model specifications
Photo: Triumph. Manufacturer media.
