Honda CB400SF
53 hp, 399 cc, 195 kg2008 - 2016
KTM 390 Duke
43 hp, 373 cc, 157 kg2015 - 2016
MetricUS
EngineHonda CB400SFKTM 390 Duke
Engine codeNC42E
Displacement399 cc373 cc
Max power53 hp (@10 500 RPM)43 hp (@8 600 RPM)
Max torque38 Nm (@9 500 RPM)34 Nm (@6 800 RPM)
Redline13 000 RPM10 500 RPM
Idling speed1 400 RPM1 650 RPM
ManagementFuel InjectionFuel Injection
LayoutDOHC Inline-4DOHC Single
Compression11.30:112.90:1
Oil capacity3.80 litre
Oil type15W50
Spark plug typeNKG CR8EH9, DENSO U24FER9BOSCH VR 5 NE, BOSCH VR 5 NEU
CoolingLiquidLiquid
Valves164
Bore55.0 mm89.0 mm
Stroke42.0 mm60.0 mm
Weight to power3.68 kg/hp3.65 kg/hp
Power to weight271 hp/Ton273 hp/Ton
Battery type12V - 8.6Ah
GearboxHonda CB400SFKTM 390 Duke
TypeSequentialSequential
ClutchWetWet
DriveChainChain
Chain typeX-Ring 5/8 x 1/4"
Gears count66
Primary ratio2.1712.667
Final drive2.9333.0
1. gear3.307 (73 km/h)2.667 (57 km/h)
2. gear2.294 (105 km/h)1.857 (81 km/h)
3. gear1.75 (137 km/h)1.421 (107 km/h)
4. gear1.421 (169 km/h)1.143 (132 km/h)
5. gear1.24 (194 km/h)0.956 (158 km/h)
6. gear1.13 (212 km/h)0.84 (180 km/h)
ChasisHonda CB400SFKTM 390 Duke
Frame typeTubular steel, double cradleSteel trellis frame
Front susp.USD 43mm, 150.00 mm travel
Rear susp.Monoshock, 150.00 mm travel