| MODEL | RIEJU MRT 50 SM PRO 2021 |
| Year | 2021 |
| Engine Type | Single cylinder, two-stroke (Minarelli NG) |
| Displacement / Capacity | 50 cc / 3.05 cu in |
| Bore X Stroke | 40.3 x 39.0 mm / 1.6 x 1.5 in |
| Compression Ratio | — |
| Cooling System | Liquid |
| Max Power | — |
| Max Torque | — |
| Ignition | — |
| Induction | Dell'Orto PHBN 16 carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Separate mixture |
| Gear Box | 6-speed |
| Clutch | Multi-disc |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Double cradle steel perimeter with detachable rear sub-chassis |
| Front Suspension | 40 mm inverted fork |
| Rear Suspension | Gas mono-shock with separate reservoir (PRS system) |
| Front Brakes | Single 300 mm / 11.8 in Galfer wave disc, double-piston caliper |
| Rear Brakes | Single 200 mm / 7.9 in Galfer wave disc |
| DIMENSION SPECS | |
| Overall Length | 2070 mm / 81.5 in |
| Overall Width | 800 mm / 31.5 in |
| Overall Height | 1145 mm / 45.1 in |
| Seat Height | 870 mm / 34.3 in |
| Wheelbase | 1380 mm / 54.3 in |
| Ground Clearance | — |
| Dry Weight | 85.0 kg / 187.4 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 100/80-17 |
| Rear Tyre | 130/70-17 |
| FUEL SYSTEM | |
| Fuel Capacity | 6.30 Litres / 1.66 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The higher-spec supermotard version of the MRT 50: a 40 mm inverted fork, gas rear shock with a remote reservoir and a large wave front disc, on 17 inch wheels. The engine is the liquid-cooled Minarelli NG two-stroke with a six-speed box and multi-disc clutch, aimed at sporty 50 cc riding.
