Aprilia RS50

Aprilia RS50
ManufacturerAprilia
Also calledRS4 50 (from 2011 to 2017)
Production1992-2020
ClassSport moped
Engine49.9 cc (3.05 cu in) single cylinder two-stroke, liquid cooled
Bore / stroke39.86 mm × 40.0 mm (1.569 in × 1.575 in)
Compression ratio11.5:1
Top speed80 km/h (50 mph)
Power3.9kW ( 5.2 ho )
Ignition typeCDI
TransmissionWet clutch, six speed, chain, chain final drive
Frame typeCast aluminium, box section, sloping twin-spar frame
SuspensionFront:: 40 mm (1.6 in) conventional fork, wheel travel 120 mm (4.7 in)
Rear: Double member swing-arm with hydraulic monoshock, wheel travel 120 mm (4.7 in)
BrakesFront: 300 mm (12 in) disc
Rear: 180 mm (7.1 in) disc
Tires17 in (430 mm) tubeless radial, front 110/80, rear 130/70
Wheelbase1,280 mm (50 in)
DimensionsL: 1,920 mm (76 in)
W: 675 mm (26.6 in)
H: 1,115 mm (43.9 in)
Seat height810 mm (32 in)
Weight89.5 kg (197 lb) (dry)
Fuel capacity13 L (2.9 imp gal; 3.4 US gal)
RelatedAprilia RS250
Aprilia RS125

The Aprilia RS50 is a Sport moped made by Aprilia.