| MODEL | RIEJU RS3 50 PRO 2017 |
| Year | 2017 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 50 cc / 3.05 cu in |
| Bore X Stroke | 40.3 x 39 mm / 1.6 x 1.5 in |
| Compression Ratio | — |
| Cooling System | Liquid |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor, Dell'Orto PHBN 16 |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Triangular double cradle, double steel tube |
| Front Suspension | Inverted fork, 41 mm |
| Rear Suspension | Mono-shock, adjustable |
| Front Brakes | Single disc, dual-piston caliper, 280 mm / 11.0 in |
| Rear Brakes | Single disc, 220 mm / 8.7 in |
| DIMENSION SPECS | |
| Overall Length | 1970 mm / 77.6 in |
| Overall Width | 720 mm / 28.3 in |
| Overall Height | 1100 mm / 43.3 in |
| Seat Height | 845 mm / 33.3 in |
| Wheelbase | 1330 mm / 52.4 in |
| Ground Clearance | — |
| Dry Weight | 119 kg / 262.3 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/80-17 |
| Rear Tyre | 130/80-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 12 Litres / 3.17 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Pro takes the RS3 50 and adds an upside-down fork and an adjustable rear shock for a more track-style feel. It keeps the 50 cc liquid-cooled two-stroke and six-speed gearbox of the standard bike. This 2017 version was offered in white and red.
