Naked Motorcycles
2021Benelli Imperiale 400
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The 2021 Benelli Imperiale 400 is a classic-styled roadster from the Italian brand Benelli. Its air-cooled 373.5cc four-stroke single makes 20.8 hp at 5,500 rpm and 29 Nm through a five-speed gearbox and chain, with ABS standard. A 780 mm seat, 200 kg dry weight and 12-litre tank suit relaxed riding.
- Capacity
- 373.5 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 200.0 kg
- Seat height
- 780 mm
- Power
- 20.8 HP (15.2 kW) @ 5500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's built for leisurely retro-styled cruising and short scenic rides rather than performance riding.
- Built for
- It has an old-school single-cylinder thumper charm with classic looks, a peashooter exhaust note, and unhurried, easygoing manners.
- Not ideal for
- It's not for riders seeking highway-speed touring, sporty cornering performance, or any serious 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 usRange and running costs
Worked out in your browser - nothing is sent to usBased on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 373.5 ccm
- Power
- 20.8 HP (15.2 kW) @ 5500 RPM
- Torque
- 29.0 Nm (3.0 kgf-m) @ 3500 RPM
- Engine type
- Single, four-stroke
- Fuel consumption
- 3.20 litres/100 km (31.3 km/l)
- Power/weight ratio
- 0.1040 HP/kg (dry)
- Bore x stroke
- 72.7 x 90.0 mm
- Compression
- 8.5:1
- Cooling system
- Air
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- ECU – Delphi MT05
- Valves per cylinder
- 2
- Lubrication system
- Wet sump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-plate
Dimensions & weight
- Wheelbase
- 1450 mm
- Overall length
- 2170 mm
- Overall width
- 815 mm
- Overall height
- 1140 mm
- Seat height
- 780 mm
- Dry weight
- 200.0 kg
- Fuel capacity
- 12.00 litres
- Ground clearance
- 170 mm
- Reserve fuel capacity
- 2.00 litres
Chassis & suspension
- Frame
- Double cradle with steel tubes and plates
- Front suspension
- Telescopic forks Ø 41mm
- Rear suspension
- Rear swing arm with double shock absorber
- Front wheel travel
- 110 mm
- Rear wheel travel
- 65 mm
Brakes & wheels
- Front brakes
- Single disc. ABS
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. ABS
- ABS
- Yes
- Front tyre
- 110/90-19
- Rear tyre
- 130/80-18
Other
- Color options
- Black, Silver
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 | 2019 | 2021 | 2023 | 2024 | 2026 |
|---|---|---|---|---|---|
| Capacity | 374 cc | 374 cc | 374 cc | 374 cc | 374 cc |
| Dry weight | 200 kg | 200 kg | 197 kg | 197 kg | 197 kg |
| Seat height | 780 mm | 780 mm | 780 mm | 780 mm | 780 mm |
| Fuel capacity | 12 L | 12 L | 12 L | 12 L | 12 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 Benelli Imperiale 400?
The 2021 Benelli Imperiale 400 has a Capacity of 373.5 ccm (22.79 cubic inches).
What engine power does the Benelli Imperiale 400 have?
The 2021 Benelli Imperiale 400 has a Power of 20.8 HP (15.2 kW) @ 5500 RPM.
How many gears does the Benelli Imperiale 400 have?
The 2021 Benelli Imperiale 400 has a Gearbox of 5-speed.
What is the torque of the Benelli Imperiale 400?
The 2021 Benelli Imperiale 400 has a Torque of 29.0 Nm (3.0 kgf-m or 21.4 ft.lbs) @ 3500 RPM.
How much does the Benelli Imperiale 400 weigh?
The 2021 Benelli Imperiale 400 has a Dry weight of 200.0 kg (440.9 pounds).
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