Engineered by Piaggio for the scooter motorcycle segment, the 2006 Piaggio X8 125 pairs a 124 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 15 HP (10.9 kW) at 10,000 rpm while maximum torque reaches 11.7 Nm (8.6 lb-ft) at 8,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 121 HP per liter and a 1,500 rpm working window between peak torque (8,500 rpm) and peak power (10,000 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 X8 125 measures 81 kg (179 lbs) dry, translating to a power-to-weight ratio of 0.19 HP/kg (5.4 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,490 mm (58.7 in) wheelbase engineered for balanced agility and highway composure. The 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Piaggio archive, this model family spans 2 indexed model years from 2006 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
121 HP/L
Power-to-Weight
0.19 HP/kg (5.4 kg/HP)
Power Band Window
8,500–10,000 rpm
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power15.0 HP (10.9 kW)) @ 10000 RPM
Torque11.7 Nm (1.2 kgf-m or 8.6 ft.lbs) @ 8500 RPM
Bore x Stroke57.0 x 48.6 mm (2.2 x 1.9 inches)
IgnitionInductive
LubricationSeparate with automatic mixer
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic centrifuge type
Chassis
Frame TypeDouble cradle of steel tubes
Front SuspensionØ 35 mm tele-hydraulic fork
Rear SuspensionTwo dual-effect shock absorbers and four-position spring preload
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.
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.
