US$ 7499. MSRP depends on country, taxes, accessories, etc.
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MotoLibrary Score
40/100Commuter
Power/Weight
0.18 hp/kg
Torque
38 Nm
Engine
399 ccm
Technical Overview
2025 Piaggio BV 400 S Technical Analysis & Specification Breakdown
At the heart of the 2025 Piaggio BV 400 S scooter motorcycle, Piaggio features a 399 cc (24.4 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 35 HP (25.5 kW) at 7,500 rpm while maximum torque reaches 37.7 Nm (27.8 lb-ft) at 5,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 87.7 HP per liter and a 2,000 rpm working window between peak torque (5,500 rpm) and peak power (7,500 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the BV 400 S measures 195 kg (430 lbs) wet (curb), translating to a power-to-weight ratio of 0.18 HP/kg (5.57 kg per horsepower). Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,550 mm (61 in) wheelbase engineered for planted straight-line stability. The 12-liter (3.2 US gal) fuel tank paired with a rated consumption of 3.91 L/100 km provides an estimated theoretical range of roughly 307 km (191 miles) between fill-ups.
Specific Output
87.7 HP/L
Power-to-Weight
0.18 HP/kg (5.57 kg/HP)
Power Band Window
5,500–7,500 rpm
Theoretical Range
~307 km (191 mi)
Engine
Displacement399.0 ccm (24.35 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power35.0 HP (25.5 kW)) @ 7500 RPM
Torque37.7 Nm (3.8 kgf-m or 27.8 ft.lbs) @ 5500 RPM
Bore x Stroke75.0 x 69.0 mm (3.0 x 2.7 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
LubricationDry sump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchMulti-disc centrifuge in oil bath
DrivelineCVT with torque server
Performance
Fuel Consumption3.91 litres/100 km (25.6 km/l or 60.16 mpg)
Greenhouse Gases90.7 CO2 g/km. (CO2 - Carbon dioxide emission)
Emission DetailsEuro 5
Chassis
Frame TypeTwin cradle tubes in high tensile steel
Front SuspensionTelescopic hydraulic fork with 35-mm stanchions
Rear SuspensionDouble shock absorbers, adjustable
Wheelbase1550 mm (61.0 inches)
Wheels & Brakes
Front Tyre120/70-R16
Rear Tyre150/70-R14
Front BrakesSingle disc. Three piston floating calliper. ABS.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
