2007 Piaggio Liberty S 125 Technical Analysis & Specification Breakdown
Engineered by Piaggio for the scooter motorcycle segment, the 2007 Piaggio Liberty S 125 relies on a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 10 HP (7.3 kW) at 8,000 rpm while maximum torque reaches 9.8 Nm (7.2 lb-ft) at 6,750 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 80.6 HP per liter and a 1,250 rpm working window between peak torque (6,750 rpm) and peak power (8,000 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 Liberty S 125 measures 108 kg (238 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (10.8 kg per horsepower). Rider ergonomics and chassis geometry center around a 805 mm (31.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 5-liter (1.3 US gal) fuel tank paired with a rated consumption of 3.57 L/100 km provides an estimated theoretical range of roughly 140 km (87 miles) between fill-ups, while factory top speed is listed at 92 km/h (57 mph).
Within MotoLibrary's Piaggio archive, this model family spans 2 indexed model years from 2007 to 2023, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
80.6 HP/L
Power-to-Weight
0.09 HP/kg (10.8 kg/HP)
Power Band Window
6,750–8,000 rpm
Theoretical Range
~140 km (87 mi)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power10.0 HP (7.3 kW)) @ 8000 RPM
Torque9.8 Nm (1.0 kgf-m or 7.2 ft.lbs) @ 6750 RPM
Compression10.6:1
Bore x Stroke57.0 x 48.6 mm (2.2 x 1.9 inches)
Fuel SystemCarburettor
Fuel ControlSingle Overhead Cams (SOHC)
LubricationWet sump
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchDry automatic centrifugal type
Performance
Top Speed92.0 km/h (57.2 mph)
Fuel Consumption3.57 litres/100 km (28.0 km/l or 65.89 mpg)
Greenhouse Gases82.8 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Front SuspensionTelehydraulic fork, 76 mm travel
Rear SuspensionHydraulic monoshock, 4 position spring preload, 85.5 mm travel
Wheels & Brakes
Front Tyre90/80-16
Rear Tyre110/80-14
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø140 mm (5.5 inches)
Dimensions & Weight
Dry Weight108.0 kg (238.1 pounds)
Power/Weight0.0926 HP/kg
Seat Height805 mm (31.7 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.
