Aprilia RS4 50 (2011-13)

The Aprilia RS4 50 Replica is a motorcycle model produced between 2011 and 2013. Its engine is a two-stroke, single cylinder, DOHC, 4-valve with a capacity of 49.9 cc. The cooling system is liquid-cooled and lubrication is achieved through an automatic mixer. Fuel system is a carburetor and the ignition is CDI, with an electric starting mechanism. The frame is made of aluminum and the front suspension is an Upside down fork, ~A41 mm. The brake system features stainless steel discs with a 300 mm 4-piston radial caliper in the front and a 218 mm single piston caliper in the rear. The wheels are constructed from light alloy with 6 split spokes and the dimensions of the RS4 50 are 1953 mm x 740 mm x 1138 mm (LxWxH). The wheelbase measures 1350 mm and the seat height is set at 820 mm. The fuel capacity is 14.5 L with an additional 3.5 L reserve. The top speed of the Aprilia RS4 50 is 96.6 km/h or 60 mph, and it comes in racing replica white, red, and black. Overall, the motorcycle is positively reviewed by moto and topspeed.

Technical specifications:

Make Model: Aprilia RS4 50 Replica

Year: 2011 – 13
Engine: Two stroke, single cylinder, DOHC, 4-valve
Capacity: 49.9 cc / 3.05 cub in.
Bore x Stroke: 39.9 x 39.9 mm
Cooling System: Liquid cooled
Compression Ratio: 11.5:1
Lubrication: Automatix mixer
Fuel system: Carburetor
Exhaust: Single, stainless steel and chrome silencer
Ignition: CDI
Starting: Electric
Clutch: Multiple discs in oil bath
Transmission: 6-Speed
Primary Transmission: 69/29
Final Drive: Chain
Final Drive Ratio: 60/13
Frame: Aluminium
Front Suspension: Upside down fork, ~A41 mm
Front Wheel Travel: 110 mm / 4.3 in.
Rear Suspension: Asymmetric swingarm, monoshock
Rear Wheel Travel: 122 mm / 4.8 in.
Front Brakes: Stainless steel disc, 300 mm, 4-piston radial caliper
Rear Brakes: Stainless steel disc, 218 mm, single piston caliper
Wheels: Light alloy with 6 split spokes
Front Rim: 2.75 x 17 in.
Rear Rim: 3.50 x 17 in.
Front Tyre: 110/80-17
Rear Tyre: 130/70-17
Dimensions: Length: 1953 mm / 76.9 in Width: 740 mm / 29.1 in Height: 1138 mm / 44.8 in
Wheelbase: 1350 mm / 53.1 in
Seat Height: 820 mm / 32.3 in.
Fuel Capacity: 14.5 L / 3.8 US gal
Reserve: 3.5 L / 0.92 US gal
Top Speed: 96.6 km/h / 60 mph
Colours: Racing replica white, red and black
Review: moto, topspeed