The Honda CB 400 N motorcycle specifications include a 395 cc (24.10 cu in) engine, a 6-speed gearbox, and a listed weight of 184 kg (405.7 lb).
Key specifications
The 1978 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Honda CB 400 N compares
This compares the motorcycle with all Honda models in this specifications database. The blue marker is this model and the grey line is the Honda database average.
About 30% lower than the Honda database average. Around the 42nd percentile across Honda models.
About 7% lighter than the Honda database average. Around the 43rd percentile across Honda models.
Very close to the Honda database average. Around the 56th percentile across Honda models.
Honda database percentile rankings
Percentiles show where this motorcycle sits across the Honda specifications database. They are descriptive database rankings, not performance ratings.
395 cc — larger displacement than about 42% of Honda models.
184 kg — heavier than about 43% of Honda models, or lighter than about 57%.
14 L — larger than about 56% of Honda fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Front tire size | 3.60-19 |
|---|---|
| Rear tire size | 4.10-18 |
| Bore/stroke ratio | 1.39:1 (Oversquare) |
Model information
| Category | Sport |
|---|
Engine specifications
| Engine type | Twin, four-stroke |
|---|---|
| Displacement | 395 cc (24.10 cu in) |
| Bore × stroke | 70.5 x 50.6 mm (2.8 x 2.0 inches) |
| Compression ratio | 9.3:1 |
| Valves per cylinder | 3 |
| Cooling system | Air |
| Fuel control | Overhead Cams (OHC) |
Transmission and drivetrain
| Gearbox | 6-speed |
|---|---|
| Final drive | Chain (final drive) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Expanding brake |
| Front tire | 3.60-19 |
| Rear tire | 4.10-18 |
Dimensions and weight
| Wet weight | 184 kg (405.7 lb) |
|---|
Fuel and emissions
| Fuel capacity | 14.00 L (3.70 US gal) |
|---|
Performance
| Top speed | 137.0 km/h (85.1 mph) |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Honda models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Honda information before relying on them. Visit the official Honda website.