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The 2024 Triumph Speed 400 brings the premium British roadster experience to a compact, beginner‑friendly package. With its 398 cc single‑cylinder engine, upright ergonomics, and modern rider aids, it delivers approachable performance with unmistakable Triumph styling — perfect for both new riders and seasoned commuters.
| Product Overview | |
|---|---|
| Miles | 615 |
| VIN | SMTT127Y6RNA22235 |
| Key Specifications | |
| Engine type | Liquid‑cooled, 4‑valve, DOHC, single‑cylinder |
| Displacement | 398.15 cc |
| Bore × Stroke | 89.0 mm × 64.0 mm |
| Compression Ratio | ~12 :1 |
| Max Power | ~40 PS (~39.5 hp) @ 8,000 rpm |
| Max Torque | ~27.7 ft‑lb (~37.5 Nm) @ 6,500 rpm |
| Fuel System | Bosch ride‑by‑wire EFI |
| Transmission | 6‑speed manual; final drive via X‑ring chain |
| Frame | Hybrid spine/perimeter tubular steel with bolt‑on rear sub‑frame |
| Front Suspension | 43 mm inverted Big‑Piston fork, ~140 mm wheel travel |
| Rear Suspension | Gas monoshock (RSU) with external reservoir & preload adjuster, ~130 mm travel |
| Front Brakes | Single 300 mm disc, four‑piston radial caliper + dual‑channel ABS |
| Rear Brake | Single 230 mm disc, floating caliper + ABS |
| Tyres | Front 110/70‑17, Rear 150/60‑17 |
| Seat Height | ~790 mm (~31.1 in) |
| Wheelbase | ~1,377 mm (~54.2 in) |
| Fuel Capacity | ~13 L (~3.43 US gal) |
| Wet Weight (running order) | ~170 kg (~375 lb) |
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