The Aprilia RS4 50 Replica embodies the pinnacle of technology and innovation in a genuine racing replica, tailored specifically for young enthusiasts. This exceptional motorcycle boasts a stainless steel disc with a 300mm diameter, complemented by a 218mm single piston caliper at the rear. Its striking design features a unique front end with suspended headlights and gaping air intakes, mirroring the style of its larger supersports sibling.
The RS4’s technical prowess is further highlighted by its multifunctional analogue/digital instrument panel, LCD display, and sleek six-spoke wheels. A subtle yet significant detail lies in the exhaust system, which is seamlessly integrated within the lower fairing, not only enhancing aesthetics but also centralizing masses for improved dynamics.
As Aprilia’s smallest supersports bike, the RS4 50 Replica marks a milestone in the evolution of the 125cc motorcycle, proudly boasting a 4-stroke engine that sets it apart from its competitors.
Key Specifications
Engine Type
Two stroke, single cylinder, DOHC, 4-valve
Engine Capacity
49.9 cc / 3.05 cub in.
Fuel Tank Capacity
3.8 US gallons / 14.5 L
Seat Height
32.3 inches / 820 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
Aprilia RS4 50 Replica
Year
2010 – 2011
Engine
Engine Type
Two stroke, single cylinder, DOHC, 4-valve
Displacement
49.9 cc / 3.05 cub in.
Bore x Stroke
39.9 x 39.9 mm
Compression Ratio
11.5:1
Lubrication System
Automatix mixer
Cooling System
Liquid cooled
Exhaust
Single, stainless steel and chrome silencer
Performance
Top Speed
96.6 km/h / 60 mph
*n/a – information not provided by manufacturer
Transmission
Clutch
Multiple discs in oil bath
Gearbox
6-Speed
Final Drive
Chain
Electrical & Electronics System
Starter
Electric
Chassis & Suspension
Frame Type
Aluminium
Front Suspension
Upside down fork, 41 mm
Front Suspension Travel
4.3 inches / 110 mm
Rear Suspension
Asymmetric swingarm, monoshock
Rear Suspension Travel
4.8 inches / 122 mm
Wheels & Brakes
Wheels
Light alloy with 6 split spokes
Front Wheel/Rim Size
2.75 x 17 in.
Front Tire Size
110/80-17
Rear Wheel/Rim Size
3.50 x 17 in.
Rear Tire Size
130/70-17
Front Brakes
Stainless steel disc, 300 mm, 4-piston radial caliper
Rear Brakes
Stainless steel disc, 218 mm, single piston caliper
Dimension & Weights
Overall Length
1953 mm / 76.9 in
Overall Width
740 mm / 29.1 in
Overall Height
1138 mm / 44.8 in
Seat Height
32.3 inches / 820 mm
Wheelbase
53.1 inches / 1350 mm
Fuel Tank Capacity
3.8 US gallons / 14.5 L
Features
Stainless steel disc, 300 mm, 4-piston radial caliper
Stainless steel disc, 218 mm, single piston caliper
Multifunctional analogue/digital instrument panel with LCD display
6-spoke design wheels
Competition-inspired exhaust system integrated into the fairing
Centralised masses for improved dynamics
Completely revised small supersports bikes
4-stroke engine in a 125 cc motorcycle
Racing replica style in a 50 cc motorcycle
Single cylinder, liquid cooled 50 cc 2-stroke engine (RS4 50)
Single cylinder, liquid cooled 125 cc 4-stroke with electronic injection (RS4 125)
4 valves and double overhead camshafts (DOHC) (RS4 125)
Extremely stiff aluminium perimeter frame
Front brake with 300 mm disc and radial four piston calliper
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*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
