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Aprilia SR 50 R - 2012 Specifications and Reviews

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About the Aprilia SR 50 R

Powered by an air-cooled Euro 2 compliant 49cc single cylinder two stroke engine, producing 4bhp.

The front of the seat has an additional glovebox while the underseat compartment fits some full face helmets. De-restricted the top speed increases from 30mph to 50mph.

The base SR50 Motard is carbureted while the top of the line SR50 R features electronic fuel injection, liquid cooling, 190mm disc brakes both ends and 13" wheels.

Accessories include a rear luggage rack, 32 litre top box, racing shock, screen and side stand.

2017: Euro 4 engine upgrades

Engine and Transmission Specifications

DrivelineGears in oil bath final drive
ClutchAutomatic centrifugal dry clutch
Transmission type,final driveBelt
GearboxAutomatic
Cooling systemLiquid
Lubrication systemSeparate mixing with mechanical oil pump
IgnitionCapacitor discharge ignition
Fuel systemCarburettor
Bore x stroke40.0 x 39.3 mm (1.6 x 1.5 inches)
Compression12.1:1
Engine typeSingle cylinder, two-stroke
Capacity:49.00 ccm (2.99 cubic inches)

CategoryScooter
Year2012
ModelAprilia SR 50 R
 
 

Brakes, suspension, Frame and wheels

WheelsFive spoke, light alloy wheels
Rear brakes diameter190 mm (7.5 inches)
Rear brakesSingle disc
Front brakes diameter190 mm (7.5 inches)
Front brakesSingle disc. Stainless steel disc; racing caliper with twin opposed 32 mm pistons.
Rear tyre dimensions130/60-13
Front tyre dimensions130/60-13
Rear suspension travel70 mm (2.8 inches)
Rear suspensionEngine unit acting as swingarm
Front suspension travel90 mm (3.5 inches)
Front suspensionHydraulic fork
Frame typeSplit single cradle frame in high tensile strength steel tube
 
 

Physical measures and capacities

Fuel capacity7.00 litres (1.85 gallons)
Wheelbase1,290 mm (50.8 inches)
Overall width705 mm (27.8 inches)
Overall length1,860 mm (73.2 inches)
Overall height1,120 mm (44.1 inches)
Seat height820 mm (32.3 inches) If adjustable, lowest setting.

Other specs

Oil capacity1.00 litres (0.07 quarts)
Wheelbase745 mm (29.3 inches)
Ground clearance75 mm (3.0 inches)
Power/weight ratio0.0417 HP/kg
Dry weight77.0 kg (169.8 pounds)
Rear tyre15/6-6
Front tyre14/6-6
Bore x Stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Compression6.8:1
Torque3.32 Nm (0.3 kgf-m or 2.4 ft.lbs) @ 5700 Revolutions">RPM
Power3.21 Horsepower">HP (2.3 Kilowatt">kW)) @ 5800 Revolutions">RPM
Capacity:49.30 ccm (3.01 cubic inches)
ModelAeon Minikolt 50
Color optionsBlue, white, black, yellow
ElectricalGenerator: Flywheel-magneto, 70 W 12 V
StarterElectric

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