2011 Gilera Runner ST 125 Technical Analysis & Specification Breakdown
Engineered by Gilera for the scooter motorcycle segment, the 2011 Gilera Runner ST 125 utilizes a 124 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 14.5 HP (10.6 kW) at 9,750 rpm while maximum torque reaches 11.7 Nm (8.6 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 116.9 HP per liter and a 1,750 rpm working window between peak torque (8,000 rpm) and peak power (9,750 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 Runner ST 125 measures 137 kg (302 lbs) wet (curb), translating to a power-to-weight ratio of 0.11 HP/kg (9.45 kg per horsepower). Rider ergonomics and chassis geometry center around a 815 mm (32.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,340 mm (52.8 in) wheelbase engineered for quick, flickable steering geometry. The 8.5-liter (2.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 108 km/h (67 mph).
Within MotoLibrary's Gilera archive, this model family spans 5 indexed model years from 2008 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
116.9 HP/L
Power-to-Weight
0.11 HP/kg (9.45 kg/HP)
Power Band Window
8,000–9,750 rpm
Standover Height
815 mm (32.1 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsLEADER engine
Power14.5 HP (10.6 kW)) @ 9750 RPM
Torque11.7 Nm (1.2 kgf-m or 8.6 ft.lbs) @ 8000 RPM
Bore x Stroke57.0 x 48.6 mm (2.2 x 1.9 inches)
Valves/Cylinder4
Fuel SystemCarburettor
Fuel ControlSingle Overhead Cams (SOHC)
LubricationWet sump lubrication
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic dry centrifuge type
DrivelineAutomatic twist and go with C.V.T
Performance
Top Speed108.0 km/h (67.1 mph)
Emission DetailsEuro 3
Chassis
Frame TypeCradled in steel tubes with pressed steel
Front SuspensionTelescopic hydraulic fork
Rear SuspensionTwin hydraulic shock absorbers
Wheelbase1340 mm (52.8 inches)
Wheels & Brakes
Front Tyre120/70-14
Rear Tyre140/60-13
Front BrakesSingle disc. Stainless steel floating disc with dual piston calliper
Front Brake Ø240 mm (9.4 inches)
Rear BrakesSingle disc. Stainless steel disc, calliper with two opposed pistons
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Weight incl.137.0 kg (302.0 pounds)
Seat Height815 mm (32.1 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.
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.
