2018Honda CB400 Super Four
18 fields on record
The 2018 Honda CB400 Super Four is Honda's classic Japanese-market naked bike with a liquid-cooled 399cc inline four. It makes 53 hp and 40.1 Nm, with a 755 mm seat, a 198 kg wet weight and an 18-litre tank.
- Capacity
- 399.0 ccm
- Engine
- In-line four, four-stroke
- Gearbox
- Not on record
Know it? Add it → - Wet weight
- 198.0 kg
- Seat height
- 755 mm
- Power
- 53.0 HP (38.6 kW) @ 11000 RPM
What’s new for the 2018 Honda CB400 Super Four
vs the 2015| Spec | 2015 | 2018 |
|---|---|---|
| Power | 52.3 HP (38.2 kW) @ 10500 RPM | 53.0 HP (38.6 kW) @ 11000 RPM |
| Torque | 38.0 Nm (3.9 kgf-m or 28.0 ft.lbs) @ 9500 RPM | 40.1 Nm (4.1 kgf-m or 29.6 ft.lbs) @ 7500 RPM |
| Gearbox | 6-speed | not listed |
| Front suspension | 41mm Showa telescopic fork with pre-load adjustment; 118mm stroke | not listed |
| Rear suspension | Twin remote reservoir Showa shock with spring pre-load adjustment; 105mm travel | not listed |
| Front brakes | Double disc. Four-piston Nissin hydraulic callipers. | not listed |
| Rear brakes | Single disc. Single-piston Nissin hydraulic calliper. | not listed |
| Wheelbase | 1410 mm (55.5 inches) | not listed |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily for engaging back-road and urban sport riding, with its charm coming from a free-revving inline-four rather than outright power.
- Built for
- The CB400 Super Four is a precise, mechanically refined naked sportbike that delivers its thrills through a silky four-cylinder engine and confident chassis rather than brute force.
- Not ideal for
- It is not the right choice for riders seeking long-distance touring comfort, large-capacity torque, or any off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usReliability & safety
Bike Reliability score, safety recalls and owner complaintsBike Reliability
How the score works →The Honda CB400 Super Four passed its annual roadworthiness test first time 79.1% of the time, 1.0 points below expected for bikes of the same age and mileage. That beats 44% of models.
This covers every year of the model.
All years of this model.
| # | Model (all years) | Score | Tests |
|---|---|---|---|
| 1 | Royal Enfield Classic 350 | 93 Excellent | 825 |
| 2 | Honda CB500F | 88 Excellent | 4,568 |
| 3 | Royal Enfield Bullet 350 | 75 Good | 8,617 |
| 4 | KTM 390 Duke | 60 Good | 9,871 |
| 5 | Yamaha MT-03 | 55 Average | 9,988 |
| 6 | Honda CB400 Super Four | 44 Average | 6,243 |
Rivals are the most-viewed bikes on MotorcycleDB in the same category and engine size, from within three years of this model.
From British annual roadworthiness tests, 2005-2025. Contains public sector information licensed under the Open Government Licence v3.0 (DVSA MOT test data, Great Britain). How Bike Reliability works.
Engine
- Capacity
- 399.0 ccm
- Power
- 53.0 HP (38.6 kW) @ 11000 RPM
- Torque
- 40.1 Nm (4.1 kgf-m) @ 7500 RPM
- Engine type
- In-line four, four-stroke
- Power/weight ratio
- 0.2677 HP/kg (wet)
- Bore x stroke
- 55.0 x 42.0 mm
- Compression
- 11.3:1
- Cooling system
- Liquid
Transmission
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Seat height
- 755 mm
- Wet weight
- 198.0 kg
- Fuel capacity
- 18.00 litres
- Dry weight
- Not on record - add it
Brakes & wheels
- Front brakes diameter
- 296 mm
- Rear brakes diameter
- 240 mm
- Front tyre
- 120/60-ZR17
- Rear tyre
- 160/60-ZR17
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 | 1992 | 1998 | 2004 | 2014 | 2018 | 2022 |
|---|---|---|---|---|---|---|
| Capacity | 399 cc | 399 cc | 399 cc | 399 cc | 399 cc | 399 cc |
| Dry weight | — | — | 168 kg | — | — | 175 kg |
| Seat height | 755 mm | 755 mm | 760 mm | 755 mm | 755 mm | 755 mm |
| Fuel capacity | 18 L | 18 L | 18 L | 18 L | 18 L | 18 L |
| Bike Reliability ⓘ | 27 Below average | 44 Average | Too few tests | Too few tests | Too few tests | Too few tests |
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 CB400 Super Four?
The 2018 Honda CB400 Super Four has a Capacity of 399.0 ccm (24.35 cubic inches).
What engine power does the Honda CB400 Super Four have?
The 2018 Honda CB400 Super Four has a Power of 53.0 HP (38.6 kW) @ 11000 RPM.
What is the torque of the Honda CB400 Super Four?
The 2018 Honda CB400 Super Four has a Torque of 40.1 Nm (4.1 kgf-m or 29.6 ft.lbs) @ 7500 RPM.
How much does the Honda CB400 Super Four weigh?
The 2018 Honda CB400 Super Four has a Wet weight of 198.0 kg (436.5 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.