| MODEL | RIEJU SMX 50 PRO 2007 |
| Year | 2007 |
| 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 |
| Start System | Electric and kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6-speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Perimetral double beam, high-strength steel |
| Front Suspension | Upside-down fork |
| Rear Suspension | Monoshock, progressive system |
| Front Brakes | Single disc, double piston (Galfer), 260 mm / 10.2 in |
| Rear Brakes | Single disc, 200 mm / 7.9 in |
| DIMENSION SPECS | |
| Overall Length | 1970 mm / 77.6 in |
| Overall Width | 750 mm / 29.5 in |
| Overall Height | 1150 mm / 45.3 in |
| Seat Height | 900 mm / 35.4 in |
| Wheelbase | 1332 mm / 52.4 in |
| Ground Clearance | — |
| Dry Weight | 94.5 kg / 208.3 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/80-17 |
| Rear Tyre | 130/70-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 8.4 Litres / 2.22 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Pro version of the SMX 50 gets a Galfer double-piston front brake and a chromed exhaust with aluminium silencer. It uses the Minarelli AM6 liquid-cooled two-stroke with six gears. Dry weight is 94.5 kg.
