Naked Motorcycles
1980Honda CB 400 N
19 fields on record
The Honda CB 400 N is a lightweight middleweight sport bike ideal for riders seeking accessible performance and nimble handling. Its air-cooled twin engine delivers smooth power suitable for both commuting and spirited riding, while the compact 185 kg frame makes it one of the most manageable sport bikes of its era. Known for reliability and ease of maintenance, it remains a favorite among beginners and experienced riders alike.
- Capacity
- 395.0 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 185.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 40.0 HP (29.4 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Best suited for relaxed cruising, short commutes, and casual weekend rides rather than performance riding.
- Built for
- A laid-back, air-cooled twin with modest power delivery and classic 1980s cruiser styling that rewards smooth, unhurried riding.
- Not ideal for
- Not a good fit for riders seeking high-speed thrills, aggressive cornering performance, or off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 395.0 ccm
- Power
- 40.0 HP (29.4 kW)
- Engine type
- Parallel Twin, four-stroke
- Power/weight ratio
- 0.2162 HP/kg (wet)
- Bore x stroke
- 70.5 x 50.6 mm
- Compression
- 9.3:1
- Cooling system
- Air
- Valves per cylinder
- 3
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 161.0 km/h (100.0 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Expanding brake
- Front tyre
- 3.60-19
- Rear tyre
- 4.10-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1980 | 1981 | 1982 | 1983 |
|---|---|---|---|---|
| Capacity | 395 cc | 395 cc | 395 cc | 395 cc |
| Fuel capacity | 14 L | 14 L | 14 L | 14 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Honda CB 400 N?
The 1980 Honda CB 400 N has a Capacity of 395.0 ccm (24.10 cubic inches).
What engine power does the Honda CB 400 N have?
The 1980 Honda CB 400 N has a Power of 40.0 HP (29.4 kW).
How many gears does the Honda CB 400 N have?
The 1980 Honda CB 400 N has a Gearbox of 6-speed.
How much does the Honda CB 400 N weigh?
The 1980 Honda CB 400 N has a Wet weight of 185.0 kg (407.9 pounds).
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