| Attribute | Value |
| General |
| Production from | 1978 year |
| Make | Honda |
| Model | Honda CB 400N |
| Category | Allround |
| Engine and transmission |
| Engine type | Twin, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Carburettor. Keihin 32mm |
| Engine details | Add |
| Displacement | 400 cm³ |
| Power | 31.3 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Air |
| Transmission type,final drive | Add |
| Torque | 33.2 Nm |
| Bore | 70.5 mm |
| Stroke | 50.6 mm |
| Gearbox | Add |
| Greenhouse gases | Add |
| Fuel control | Add |
| Emission details | Add |
| Driveline | Add |
| Ignition | Electronic |
| Clutch | Add |
| Lubrication system | Add |
| Compression | 9.4:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Telescopic fork |
| Rear suspension | Swingarm Twin Shock |
| Front brakes | Double disc |
| Rear brakes | Expanding brake (drum brake) |
| Diameter | Add |
| Frame type | Add |
| Front tyre | 3.60-19 |
| Rear tyre | 4.10-18 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | Add |
| Rear wheel travel | Add |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Electric & kick |
| Color options | |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,390 mm |
| Kerb weight | Add |
| Dry weight | 167 kg |
| Power/weight ratio | 0.1874 |
| Overall height | 1,105 mm |
| Overall length | 2,115 mm |
| Overall width | 730 mm |
| Seat height | 795 mm |
| Alternate seat height | Add |
| Ground clearance | Add |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | 166 km/h |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | Add |
| Fuel capacity | 14 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |