29 August. Saturday 2026
Triumph Speed 400 - 2027 Specifications and Reviews
The Triumph Speed 400 continues as the naked-roadster sibling to the Scrambler 400X for 2027, sharing the same 398cc single-cylinder engine and its claimed 39.5 hp at 8,000 rpm and 27.7 ft-lb at 6,500 rpm through a 6-speed gearbox. At a lower 790mm seat height and a claimed 170 kg wet weight, it trades the Scrambler's off-road stance for a lower, more street-focused riding position while keeping the same 43mm upside-down forks and radial four-piston front brake.
General information | |
| Category | Roadster |
| Year | 2027 |
| Model | Triumph Speed 400 |
| | |
Engine and Transmission Specifications | |
| Gearbox | 6 speed |
| Clutch | Wet, multi-plate, slip & assist |
| Final Drive | X-ring chain |
| Exhaust System | Stainless twin-skin header system with stainless steel silencer |
| Max Torque | 27.7 ft lb @ 6,500 rpm |
| Max Power | 39.5 HP (40PS) @ 8,000 RPM |
| Compression Ratio | 12:1 |
| Capacity | 398.15 cc |
Physical measures and capacities | |
| Wet Weight | 375 lb (170kg) |
| Fuel Capacity | 3.43 US gal (13 litres) |
| Wheelbase | 54.21 in (1377 mm) |
| Seat Height | 31.10 in (790 mm) |
| Overall Height | 42.68 (1084mm) |
| Overall Width | 32.05 in (814 mm) |
| | |
Triumph Speed 400 dimensions and frame | |
| Trail | 4.02 in (102 mm) |
| Rake | 24.6 º |
| Rear Brakes | 230mm fixed disc, floating caliper, ABS |
| Front Brakes | 300mm fixed disc, four-piston radial caliper, ABS |
| Rear Suspension | Gas monoshock RSU with external reservoir and pre-load adjustment. 130mm wheel travel |
| Front Suspension | 43mm upside down Big Piston forks. 140mm wheel travel |
| Rear Tyre | 150/60 R17 |
| Front Tyre | 110/70 R17 |
| Frame | Hybrid spine/perimeter, tubular steel, bolt-on rear subframe |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
39.5 hp
Peak Power
5.8s
0-60 mph
Best For
Track45%
City88%
Cornering80%
Daily Riding85%
Touring50%
Passenger55%
Rider Profile
| Best For | Well suited to newer riders and those upgrading from smaller commuter bikes thanks to its approachable power and light, predictable handling. |
| Purpose | Designed as a versatile single-cylinder roadster that excels at city commuting, weekend cornering fun, and learning the ropes of a bigger machine. |
| Rider Fit | A low seat height and manageable 170kg wet weight make it accessible to riders of varying heights and confidence levels, including shorter riders. |
| Character | Feels like a modern, torquey single with a premium chassis feel, upside-down forks, and radial brakes giving it a sportier edge than typical entry-level bikes. |
| Not Ideal For | Not the right choice for riders wanting serious long-distance touring comfort, high-speed motorway cruising, or genuine off-road capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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