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 |
