Features - APRILIA SR 50 RThe SR is not just a scooter. If you know anything about scooters and know what you want, the SR is the scooter! It’s got bags of appeal! See it once and you’ll fall in love with it. Then, when it’s yours, you just can’t help getting noticed. The SR doesn’t just look fantastic with its race derived styling…It’s got performance to match, from Aprilia’s racing technology and passion for speed. The secret is in the engine, with its electronic direct injecton technology and liquid cooling. This engine is what makes the SR 50 R Factory a really different scooter, one you can feel free to demand more from. Engine
Liquid cooled horizontal single cylinder two stroke. Electronic direct fuel injection.
Bore and stroke
40 x 39.3 mm
Displacement
49 cc
Compression ratio
11.5 : 1
Air-oil mix aspiration
Reed valve
Fuel injection
Electronically controlled, air assisted, direct injection into the combustion chamber.
Injector type
EFI low flow injector
Direct Injection system
External opening, SMD 8 micron medium spray
Pressure regulator
Pressure differential maintained at 2.5 bar
Throttle body
Ø 18 mm throttle body with integrated TPS (Throttle Position Sensor)
Air compressor
Driven off crankshaft, lubricated by air-oil mix in crank chamber
Fuel pump
6.5 – 8 bar, high pressure pump with low electrical power absorption, < 0.5 A
Electronic Control Unit
8 Hz clock speed, 22 pin
Ignition
High power inductive ignition
Starting
Electric
Generator
Flywheel-magneto, 165W – 12 V
Lubrication
Oil injection with oil pump
Oil tank capacity
1.2 litres (0.2 litre reserve)
Gearbox
Continuous automatic converter
Clutch
Automatic centrifugal dry clutch
Primary drive
V belt
Final drive
Gears in oil bath
Frame
Split single cradle frame in high tensile strength steel
Front suspension
Hydraulic fork, 90 mm wheel travel
Rear suspension
Engine unit acting as swingarm; frame linkages on two radial silent block mountings; wheel travel 70 mm.
Brakes
Front: 190 mm stainless steel disc; racing calliper with twin opposed 32 mm pistons.
Rear: 190 mm stainless steel disc; racing calliper with twin opposed 30 mm pistons.
Wheels
Five spoke, light alloy wheels front and rear: 3.50 x 13"
Tyres
Tubeless
Front and rear: 130/60 x 13”
Dimensions
Max. length: 1860 mm
Max width: 705 mm
Max. height: 1120 mm
Seat height: 820 mm
Wheelbase: 1290 mm
Tank capacity
7 litres
Colours
Aprilia Red, Aprilia Black, Aprilia White, Spiderman
Accessories
rear luggage rack for 28 litre New Concept top box
large windshield
sports windshield
front footrest spoilers
side stand
Bodyguard armoured cable lock
Homologation
EURO 2
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