2016 Aprilia SR 50 Street Technical Analysis & Specification Breakdown
Engineered by Aprilia for the scooter motorcycle segment, the 2016 Aprilia SR 50 Street features a 49 cc (3 cu in) liquid-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 3.6 HP (2.6 kW) at 6,500 rpm while maximum torque reaches 4.3 Nm (3.2 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 12.1:1 compression ratio.
On the scales, the SR 50 Street measures 108 kg (238 lbs) dry. 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 1,265 mm (49.8 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, while factory top speed is listed at 45 km/h (28 mph).
Within MotoLibrary's Aprilia archive, this model family spans 5 indexed model years from 2007 to 2016, 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 intake
Power3.6 HP (2.6 kW)) @ 6500 RPM
Torque4.3 Nm (0.4 kgf-m or 3.2 ft.lbs)
Compression12.1:1
Bore x Stroke40.0 x 39.3 mm (1.6 x 1.5 inches)
Fuel SystemCarburettor. 17.5 mm throttle body
IgnitionCapacitor discharge ignition
LubricationSeparate mixing with mechanical oil pump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
Performance
Top Speed45.0 km/h (28.0 mph)
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, secured to the frame by linkages on radial silent block mountings.
Rear Travel70 mm (2.8 inches)
Wheelbase1265 mm (49.8 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 front and rear: 3.50 x 13´
Dimensions & Weight
Dry Weight108.0 kg (238.1 pounds)
Power/Weight0.0333 HP/kg
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.
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.
