2023 Aprilia SR 125 Technical Analysis & Specification Breakdown
Engineered by Aprilia for the scooter motorcycle segment, the 2023 Aprilia SR 125 features a 124.5 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 9.9 HP (7.2 kW) at 7,700 rpm while maximum torque reaches 9.7 Nm (7.2 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 79.5 HP per liter and a 1,700 rpm working window between peak torque (6,000 rpm) and peak power (7,700 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 SR 125 measures 115 kg (254 lbs) wet (curb), translating to a power-to-weight ratio of 0.09 HP/kg (11.62 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,350 mm (53.1 in) wheelbase engineered for quick, flickable steering geometry. The 6-liter (1.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Aprilia archive, this model family spans 4 indexed model years from 2021 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
79.5 HP/L
Power-to-Weight
0.09 HP/kg (11.62 kg/HP)
Power Band Window
6,000–7,700 rpm
Engine
Displacement124.5 ccm (7.60 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsI-get engine
Power9.9 HP (7.2 kW)) @ 7700 RPM
Torque9.7 Nm (1.0 kgf-m or 7.2 ft.lbs) @ 6000 RPM
Compression9.2:1
Bore x Stroke52.0 x 58.6 mm (2.0 x 2.3 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionCDI
LubricationWet sump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic centrifugal dry
DrivelineCVT
Performance
Emission DetailsBS-VI compliant
Chassis
Frame TypeDouble cradle, in high-resistance steel tubing
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.
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.
