Aprilia SR50

SR50 R Factory
Manufacturer	Aprilia
Parent company	Piaggio
Production	1992 - Current
Class	Scooter
Engine	49.38 cc (several different engines used)
Top speed	45-50 km/h restricted, up to 85-90 km/h derestricted. Optional gear up kits available, they can lift the maximum speed up to 130 km/h.
Transmission	CVT
Suspension	Front telescopic fork, rear hydraulic monoshock
Brakes	190mm disks front and rear
Tires	13" wheels 130/60 tyres
Wheelbase	1290 mm
Dimensions	L: 1860 mm; W: 705 mm;
Seat height	765 mm
Weight	108 kg (wet)
Fuel capacity	7.45 L
Oil capacity	1.2 L
Fuel consumption	110- 145mpg

The Aprilia SR50 is a scooter built by Aprilia. Introduced in 1992, more than 800,000 units have been sold, bucking the trend for less use of two-stroke engines. Aprilia claims several firsts for the SR50 in the scooter market, including 13 inch wheels, liquid cooling, double disc braking, and a direct injection engine.

Aprilia SR50 R Factory, the latest model

The performance-oriented suspension, tires, and engine are consistent with its styling. Colours and graphics vary by country. The digital instrument panel gives readings for speed, clock, odometer, trip counter, fuel level, coolant temperature and battery voltage.

The SR50 has used a variety of engines, sourced from Morini, Piaggio and Minarelli. It conforms to EURO 3 emission standards. The DiTech model used an injection engine, with technology from Orbital. The current model uses a Dell'Orto waterbottle. The powerful engines allow reaching very high speeds for a scooter, the SR50 can reach 90 km/h in its standard configuration after being derestricted.

DITECH two-stroke engine

The SR50 DITECH uses the Synerject gasoline direct injection (GDI) system developed jointly by the Orbital Corporation and Siemens AG. The system uses a crank-driven air compressor to deliver air to the cylinder head at a pressure of 5 bars (500 kPa; 73 psi), thereby avoiding the use of carburation; the cylinder walls are not wet with gasoline, only with lubricating oil. After the port is closed and the air is compressed by the piston, gasoline is injected by an atomizer like a spray nozzle mixed with and propelled by the highly compressed air, into the main combustion chamber where, after the injection port closes, and the piston is still rising, it is ignited in the compressed main charge of air. The use of direct injection and stratified charge allows the DITECH engine to meet Euro 2 standards.[1]

Aprilia SR50R

2003 Aprilia SR50 Ditech with customized lighting

gollark: True enough, I guess! You could probably just edit your mind if it was a problem, if you had the technology to upload it into plasma.

gollark: "Flesh" is the biological carbon-y meat humans/animals/etc are currently made of. The particles or whatever would be your *body*, but not "flesh".

gollark: Hmm, that *would* be better actually.

gollark: Plasma is imperfect. We should directly write our minds into the interactions of fundamental particles.

gollark: https://media.discordapp.net/attachments/348702212110680064/849415360524058714/image0.png?width=431&height=422

References

Wade, Adam (2004). Motorcycle Fuel Injection Handbook. St. Paul, MN USA: Motorbiiks International. p. 124. ISBN 978-0-7603-1635-1. Retrieved 2014-05-23.

External links

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[1] Wade, Adam (2004). Motorcycle Fuel Injection Handbook. St. Paul, MN USA: Motorbiiks International. p. 124. ISBN 978-0-7603-1635-1. Retrieved 2014-05-23.