Supermotos
2021Rieju MRT 50 SM
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The 2021 Rieju MRT 50 SM is a lightweight super motard designed for younger riders and beginners seeking an agile, street-focused machine. Powered by a responsive Minarelli NG two-stroke engine with liquid cooling and six-speed transmission, it delivers nimble handling and playful performance ideal for urban riding and learning fundamentals. Its robust steel frame and quality suspension components provide confidence-inspiring stability for novice riders developing their skills.
- 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 2021 Rieju MRT 50 SM
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Torque | 5.0 Nm (0.5 kgf-m or 3.7 ft.lbs) | not listed |
| Front suspension | Inverted Fork | Fork of Ø37mm. |
| Rear suspension | Gas Mono-shock shock absorber and seaprate bottle PRS system | Mono-shock |
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)
- 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
- Torque
- Not on record - add it
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
- Fork of Ø37mm.
- Rear suspension
- Mono-shock
Brakes & wheels
- Front brakes
- Double disc. Galfer wave disc with double piston caliper
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc. Galfer wave disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 100/80-17
- Rear tyre
- 130/70-17
Other
- Color options
- Black, Red, White
- Comments
- Spanish brand.
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 | 2021 | 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 2021 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 2021 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 2021 Rieju MRT 50 SM has a Gearbox of 6-speed.
How much does the Rieju MRT 50 SM weigh?
The 2021 Rieju MRT 50 SM has a Dry weight of 85.0 kg (187.4 pounds).
Shop this bike
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The 2021 Rieju MRT 50 SM is a top-notch, lightweight motorcycle that offers impressive performance on both city streets and off-road terrains. With its sleek design and powerful engine, this bike is perfect for riders looking for a thrilling experience. The MRT 50 SM features a robust suspension system and reliable brakes, providing riders with excellent control and stability. Additionally, the motorcycle's compact size makes it easy to maneuver through traffic and navigate tight corners, making it a great choice for urban riders.
Overall, the 2021 Rieju MRT 50 SM is a fantastic option for riders who want a versatile and capable motorcycle. Whether you're commuting to work or exploring the great outdoors, this bike delivers a thrilling and reliable performance. With its stylish design and advanced features, the MRT 50 SM is a solid choice for anyone looking for a fun and practical two-wheeled companion. If you're in the market for a high-performing and agile motorcycle, the 2021 Rieju MRT 50 SM is definitely worth considering.
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