Naked Motorcycles
2025SWM Hoku 400
27 fields on record
The 2025 SWM Hoku 400 is a nimble naked bike designed for entry-level and middleweight riders seeking modern technology in an accessible package. Its liquid-cooled 400cc twin-cylinder engine delivers 42.2 horsepower with Euro 5 compliance, making it ideal for commuting and weekend rides. Known for its manageable power delivery and lightweight handling characteristics, the Hoku suits riders transitioning to larger displacement bikes.
- Capacity
- 400.9 ccm
- Engine
- Parallel Twin, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 155.0 kg
- Seat height
- 785 mm
- Power
- 42.1 HP (31.5 kW)
What’s new for the 2025 SWM Hoku 400
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Engine capacity | 378.0 ccm (23.07 cubic inches) | 400.9 ccm (24.46 cubic inches) |
| Power | 44.3 HP (32.3 kW) | 42.1 HP (31.5 kW) |
| Seat height | 820 mm (32.3 inches) | 785 mm (30.9 inches) |
| Front suspension | Kayba telescopic hydraulic fork | Kayba telescopic hydraulic fork 41mm |
| Rear suspension | Monoshock | Monoshock Adjustable preload |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed primarily as an accessible, low-cost naked bike for commuting and everyday city riding rather than outright performance.
- Built for
- A budget-friendly, no-frills naked with a twin-cylinder engine that offers a livelier feel than typical single-cylinder rivals in its class.
- Not ideal for
- Not a good fit for riders wanting highway-speed touring comfort, serious offroad capability, or track-level performance.
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 usEngine
- Capacity
- 400.9 ccm
- Power
- 42.1 HP (31.5 kW)
- CO2 Emissions
- 5 CO2 g/km
- Engine type
- Parallel Twin, four-stroke
- Power/weight ratio
- 0.2716 HP/kg (dry)
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Electronic
- Valves per cylinder
- 4
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multiplate type
Dimensions & weight
- Seat height
- 785 mm
- Dry weight
- 155.0 kg
- Fuel capacity
- 16.50 litres
Chassis & suspension
- Front suspension
- Kayba telescopic hydraulic fork 41mm
- Rear suspension
- Monoshock Adjustable preload
Brakes & wheels
- Front brakes
- Single disc. ABS. Brembo
- Rear brakes
- Single disc. ABS. Brembo.
- ABS
- Yes
- Front tyre
- 110/70-17
- Rear tyre
- 150/60-17
Other
- Color options
- Black
- Comments
- Italian brand.
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 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|
| Capacity | 378 cc | 378 cc | 401 cc | 401 cc |
| Dry weight | 154 kg | 154 kg | 155 kg | 155 kg |
| Seat height | 820 mm | 820 mm | 785 mm | 785 mm |
| Fuel capacity | 16.5 L | 16.5 L | 16.5 L | 16.5 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 SWM Hoku 400?
The 2025 SWM Hoku 400 has a Capacity of 400.9 ccm (24.46 cubic inches).
What engine power does the SWM Hoku 400 have?
The 2025 SWM Hoku 400 has a Power of 42.1 HP (31.5 kW).
How many gears does the SWM Hoku 400 have?
The 2025 SWM Hoku 400 has a Gearbox of 6-speed.
How much does the SWM Hoku 400 weigh?
The 2025 SWM Hoku 400 has a Dry weight of 155.0 kg (341.7 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.