Built around Aprilia's scooter motorcycle platform, the 2008 Aprilia Scarabeo 400 relies on a 400 cc (24.4 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 33.3 HP (24.3 kW) at 7,500 rpm while maximum torque reaches 36 Nm (26.6 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 83.3 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 Scarabeo 400 measures 194 kg (428 lbs) dry, translating to a power-to-weight ratio of 0.17 HP/kg (5.83 kg per horsepower). Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,535 mm (60.4 in) wheelbase engineered for planted straight-line stability. The 13.2-liter (3.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 140 km/h (87 mph).
Within MotoLibrary's Aprilia archive, this model family spans 3 indexed model years from 2008 to 2010, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
83.3 HP/L
Power-to-Weight
0.17 HP/kg (5.83 kg/HP)
Power Band Window
5,500–7,500 rpm
Standover Height
785 mm (30.9 in)
Engine
Displacement400.0 ccm (24.41 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power33.3 HP (24.3 kW)) @ 7500 RPM
Torque36.0 Nm (3.7 kgf-m or 26.6 ft.lbs) @ 5500 RPM
Bore x Stroke85.8 x 69.0 mm (3.4 x 2.7 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionElectronic CDI ignition with automatic timing.
LubricationWet sump. Forced circulation with mechanical pump.
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic centrifugal dry clutch.
Performance
Top Speed140.0 km/h (87.0 mph)
Chassis
Frame TypeHigh strength tubular steel frame with closed double cradle.
Front SuspensionTelescopic fork, hydraulic
Rear SuspensionDouble acting hydraulic shock absorber with preload adjustment
Wheelbase1535 mm (60.4 inches)
Wheels & Brakes
Front Tyre110/70-16
Rear Tyre150/70-14
Front BrakesDouble disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight194.0 kg (427.7 pounds)
Power/Weight0.1714 HP/kg
Seat Height785 mm (30.9 inches) If adjustable, lowest setting.
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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
