Aprilia RS50

Infobox motorcycle


name=Aprilia RS50
manufacturer=Aprilia
class=Sport bike
engine=50cc Single cylinder two-stroke, liquid cooled
length=1920mm
width=675mm (at handlebars)
height=1115mm (at windshield)
810mm (seat height)
wheelbase=1280mm
weight=89Kg
similar=Derbi GPR50The Aprilia RS50 is a GP derived replica sport production motorcycle made by Aprilia. It is powered by a single cylinder 2-stroke aluminium cylinder block, liquid cooled 50cc AM6 engine. The bike is popular in countries that have restrictions on motorcycle engine size. The bike is 7/8ths the size of the average bike and is perfect for smaller or shorter riders. At 175lbs. dry weight, it can be supported by almost anyone. It is a favorite among teenage riders for this reason.Fact|date=May 2008

pecifications

;Engine
* Single cylinder two-stroke, liquid cooled. Light alloy cylinder with Gilnisil coating. Reed intake in crankcase. Balancing countershaft.
**Bore By Stroke: 40.3 x 39 mm.
**Displacement: 50cc
**Compression Ratio: 12 ± 0.5:1
**Carburettor: Dell’Orto PHBN 12 - HS.
**Ignition: Electronic, capacitor discharge
**Starting Method: Electric
**Alternator: 12V – 105W
**Lubrication: Separate mixing with variable displacement, volumetric pump.
**Power: 12HP
**Top Speed: 60-70mph depending on rider and year of bike's manufacture.;Gear box
* Six speed Primary drive Gear Final drive Chain;Final drive
* Chain: 12/47 (2.55);Clutch
*Multi-disc in oil bath.;FrameCast aluminium, reinforced box section, sloping twin-spar frame.;Suspension
* Front suspension: ø 35 mm central pin hydraulic telescopic fork, wheel travel 110 mm
* Rear suspension: Double member swing-arm in high strength steel with hydraulic monoshock, wheel travel 120 mm;Brakes
* Front: stainless steel disk, Ø 280 mm, double piston calliper, Ø 25 mm pistons
* Rear: stainless steel disk, Ø 220 mm, single piston calliper, Ø 28 mm piston;Wheels
* Five spoke aluminium alloy with profile for tubeless tyres; front: 2.50 x 17"; rear: 3.00 x 17";Tires
* Tubeless radial. Front 90/80 17”; rear 110/80 17”.;Fuel tank
* 13 litres (2.60 litre reserve)

External links

* [http://www.aprilia.com/modelli/road/modello.asp?id=71&lin2=eng RS 50 page at aprilia.com]