2014 Aprilia SR 50 Factory Technical Analysis & Specification Breakdown
Positioned in Aprilia's scooter motorcycle lineup, the 2014 Aprilia SR 50 Factory relies on a 49 cc (3 cu in) liquid-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 5.4 HP (3.9 kW) at 8,500 rpm while maximum torque reaches 4.7 Nm (3.5 lb-ft), transferring power to the rear wheel through a automatic gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 40.0 x 39.3 mm (1.6 x 1.5 inches) with a 11.5:1 compression ratio.
Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,290 mm (50.8 in) wheelbase engineered for quick, flickable steering geometry. The 7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Aprilia archive, this model family spans 2 indexed model years from 2014 to 2021, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
820 mm (32.3 in)
Engine
Displacement49.0 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsReed valve
Power5.4 HP (3.9 kW)) @ 8500 RPM
Torque4.7 Nm (0.5 kgf-m or 3.5 ft.lbs)
Compression11.5:1
Bore x Stroke40.0 x 39.3 mm (1.6 x 1.5 inches)
Fuel SystemInjection. EFI low flow injector. Direct injection system External opening, SMD 8 micron medium spray.
IgnitionCDI
LubricationWet sump forced lubrication system with mechanical pump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic centrifugal dry clutch
DrivelineV belt. Continuous automatic variator .
Chassis
Frame TypeSplit single cradle frame in high tensile strength steel tube
Front SuspensionHydraulic fork,
Front Travel90 mm (3.5 inches)
Rear SuspensionEngine unit acting as swingarm
Rear Travel70 mm (2.8 inches)
Wheelbase1290 mm (50.8 inches)
Wheels & Brakes
Front Tyre130/60-13
Rear Tyre130/60-13
Front BrakesSingle disc
Front Brake Ø190 mm (7.5 inches)
Rear BrakesSingle disc
Rear Brake Ø190 mm (7.5 inches)
WheelsFive spoke light alloy wheels
Dimensions & Weight
Seat Height820 mm (32.3 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.
