Supermotos
2020Rieju MRT 50 SM
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The 2020 Rieju MRT 50 SM is a Spanish 50cc supermoto for young riders who want a full-size, sporty bike. Its liquid-cooled 50cc two-stroke single makes 5.4 hp and 5 Nm through a six-speed gearbox and chain. An 870 mm seat, 85 kg dry weight and 6.3-litre tank complete it.
- Capacity
- 50.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 85.0 kg
- Seat height
- 870 mm
- Power
- 5.4 HP (4.0 kW)
What’s new for the 2020 Rieju MRT 50 SM
vs the 2019| Spec | 2019 | 2020 |
|---|---|---|
| Torque | — | 5.0 Nm (0.5 kgf-m or 3.7 ft.lbs) |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed for playful, nimble city riding and light supermoto-style fun rather than any serious speed or distance work.
- Built for
- A tiny, high-revving two-stroke supermoto that rewards eager throttle use and sharp cornering lines over outright pace.
- Not ideal for
- Not a fit for riders wanting highway speed, long-distance touring capability, or a passenger-friendly setup.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 50.0 ccm
- Power
- 5.4 HP (4.0 kW)
- Torque
- 5.0 Nm (0.5 kgf-m)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.0635 HP/kg (dry)
- Bore x stroke
- 40.3 x 39.0 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- CDI
- Lubrication system
- Separate mixture
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1380 mm
- Overall length
- 2070 mm
- Overall width
- 800 mm
- Overall height
- 1145 mm
- Seat height
- 870 mm
- Dry weight
- 85.0 kg
- Fuel capacity
- 6.30 litres
- Oil capacity
- 1.10 litres
Chassis & suspension
- Frame
- Highly resistant double cradle steel perimeter. Detachable rear sub-chassis.
- Front suspension
- Inverted Fork
- Rear suspension
- Gas Mono-shock shock absorber and seaprate bottle PRS system
Brakes & wheels
- Front brakes
- Double disc. Galfer wave disc with double piston caliper
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Galfer wave disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 100/80-17
- Rear tyre
- 130/70-17
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2010 | 2014 | 2018 | 2020 | 2022 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 50 cc | 50 cc | 50 cc | 50 cc | 50 cc | 50 cc |
| Dry weight | 95 kg | 85 kg | 85 kg | 85 kg | 85 kg | 85 kg |
| Seat height | 840 mm | 850 mm | 850 mm | 870 mm | 870 mm | 870 mm |
| Fuel capacity | 6.3 L | 6.3 L | 6.3 L | 6.3 L | 6.3 L | 6.3 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Rieju MRT 50 SM?
The 2020 Rieju MRT 50 SM has a Capacity of 50.0 ccm (3.05 cubic inches).
What engine power does the Rieju MRT 50 SM have?
The 2020 Rieju MRT 50 SM has a Power of 5.4 HP (4.0 kW).
How many gears does the Rieju MRT 50 SM have?
The 2020 Rieju MRT 50 SM has a Gearbox of 6-speed.
What is the torque of the Rieju MRT 50 SM?
The 2020 Rieju MRT 50 SM has a Torque of 5.0 Nm (0.5 kgf-m or 3.7 ft.lbs).
How much does the Rieju MRT 50 SM weigh?
The 2020 Rieju MRT 50 SM has a Dry weight of 85.0 kg (187.4 pounds).
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