KTM 390 Duke vs Triumph Speed 400: specs compared
Side-by-side specs of the KTM 390 Duke (2026-present) and the Triumph Speed 400 (2026-present), using the latest model year of each.
Key differences
- Power: KTM 390 Duke 44.3 hp, Triumph Speed 400 39.4 hp.
- Torque: KTM 390 Duke 39 Nm, Triumph Speed 400 37.5 Nm.
- Weight: KTM 390 Duke 165 kg, Triumph Speed 400 170 kg.
Key figures
Power hp
- KTM 390 Duke (2026-present)44.3 (best)
- Triumph Speed 400 (2026-present)39.4
Torque Nm
- KTM 390 Duke (2026-present)39 (best)
- Triumph Speed 400 (2026-present)37.5
Weight kg
- KTM 390 Duke (2026-present)165 (best)
- Triumph Speed 400 (2026-present)170
Full specs
| Specification |  2026-present Remove |  2026-present Remove |
|---|---|---|
| Category | Naked | Naked |
| Years | 2026-present | 2026-present |
| Engine | single-cylinder , 4 strokes Injection Ø 46 mm Cooling system : liquid 2 ACT 4 valves 398.70 cc 44.90 ch (44.30 hp) to 8,500 rpm 4.10 mkg (39 Nm) to 7,000 rpm | single-cylinder , 4 strokes Injection Ø nc Cooling system : liquid 2 ACT 4 valves 398.15 cc 40 ch (39.40 hp) to 8,000 rpm 3.90 mkg (37.50 Nm) to 6,500 rpm |
| Cylinders | 1 | 1 |
| Displacement | 398 cc | 398 cc |
| Power | 44.3 hp @ 8,500 rpmBest | 39.4 hp @ 8,000 rpm |
| Torque | 39 Nm @ 7,000 rpmBest | 37.5 Nm @ 6,500 rpm |
| Transmission | 6 stage gearbox , manual - optional shifter Secondary by chain | 6 stage gearbox , manual Secondary by chain |
| Final drive | chain | chain |
| Weight | 165 kg (wet)Best | 170 kg (wet) |
| Seat height | 820 mm | 790 mm |
| Fuel capacity | 15 LBest | 13 L |
| Front suspension | WP inverted telehydraulic fork Ø 43 mm / White Power (WP) , Wheel travel : 150 mm (5.91 in) Compression and rebound adjustment | Inverted telescopic fork Ø 43 mm, Wheel travel : 140 mm (5.51 in) |
| Rear suspension | WP single shock absorber / White Power (WP) , Wheel travel : 150 mm (5.91 in) Preload and rebound adjustment | Mono-damper, Wheel travel : 130 mm (5.12 in) |
| Brake system | Not available | ABS |
| Front brake | 1 White Power (WP) disc Ø 320 mm (12.6 in), radial mounting, 4-piston caliper (WP FCR4) | 1 disc Ø 300 mm (11.81 in), radial mounting, 4-piston caliper |
| Rear brake | 1 disc Ø 240 mm (9.45 in), single-piston caliper | 1 disc Ø 230 mm (9.06 in), 2-piston caliper |
| Front tire | 110/70-17 | 110/70-17 |
| Rear tire | 150/60-17 | 150/60-17 |
| Quickshifter | Not available | Not available |
| Launch price | Not available | Not available |