| MODEL | RIEJU RS2 PRO 125 2010 |
| Year | 2010 |
| Engine Type | Single cylinder, four-stroke |
| Displacement / Capacity | 125 cc / 7.63 cu in |
| Bore X Stroke | 54.0 x 54.0 mm / 2.1 x 2.1 in |
| Compression Ratio | — |
| Cooling System | Air |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor, Mikuni VM20SS |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 5-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Triangular double cradle, double steel tube |
| Front Suspension | 35 mm Showa inverted fork |
| Rear Suspension | Gas monoshock with separate reservoir |
| Front Brakes | Single 280 mm disc |
| Rear Brakes | Single 220 mm disc |
| DIMENSION SPECS | |
| Overall Length | 1900 mm / 74.8 in |
| Overall Width | 620 mm / 24.4 in |
| Overall Height | 1060 mm / 41.7 in |
| Seat Height | 800 mm / 31.5 in |
| Wheelbase | 1300 mm / 51.2 in |
| Ground Clearance | — |
| Dry Weight | 109.5 kg / 241.4 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/80-17 |
| Rear Tyre | 130/80-16 |
| FUEL SYSTEM | |
| Fuel Capacity | 10.4 Litres / 2.75 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Pro version of the 125 cc RS2 adds Showa inverted forks and a gas-charged rear shock with a remote reservoir. It keeps the air-cooled four-stroke engine and five-speed gearbox of the standard RS2 125.
