At the heart of the 2007 Piaggio X9 Evolution 250 scooter motorcycle, Piaggio features a 249.4 cc (15.2 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 29.5 HP (21.5 kW) at 8,250 rpm while maximum torque reaches 20.2 Nm (14.9 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 118.3 HP per liter and a 1,750 rpm working window between peak torque (6,500 rpm) and peak power (8,250 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the X9 Evolution 250 measures 185 kg (408 lbs) dry, translating to a power-to-weight ratio of 0.16 HP/kg (6.27 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 1,500 mm (59.1 in) wheelbase engineered for balanced agility and highway composure.
Within MotoLibrary's Piaggio archive, this model family spans 3 indexed model years from 2005 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
118.3 HP/L
Power-to-Weight
0.16 HP/kg (6.27 kg/HP)
Power Band Window
6,500–8,250 rpm
Standover Height
790 mm (31.1 in)
Engine
Displacement249.4 ccm (15.22 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power29.5 HP (21.5 kW)) @ 8250 RPM
Torque20.2 Nm (2.1 kgf-m or 14.9 ft.lbs) @ 6500 RPM
Compression11.5:1
Bore x Stroke72.0 x 60.0 mm (2.8 x 2.4 inches)
Fuel SystemInjection
IgnitionInductive
LubricationSeparate with automatic mixer
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic centrifuge type
Chassis
Frame TypeDouble cradle, high resistance steel pipe structure
Front SuspensionTelehydraulic fork,
Front Travel90 mm (3.5 inches)
Rear SuspensionTwin effect hydraulic absorbers with preload adjusters
Rear Travel83 mm (3.3 inches)
Wheelbase1500 mm (59.1 inches)
Wheels & Brakes
Front Tyre120/70-14
Rear Tyre140/60-14
Front BrakesDouble disc
Front Brake Ø240 mm (9.4 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Dry Weight185.0 kg (407.9 pounds)
Power/Weight0.1595 HP/kg
Seat Height790 mm (31.1 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.
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.
