Supermotos
2021Rieju MRT 50 SM Pro
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The 2021 Rieju MRT 50 SM Pro is a lightweight super motard designed for riders seeking sporty performance in the 50cc class. Powered by a liquid-cooled Minarelli NG two-stroke engine with a six-speed gearbox, it combines agile handling with racing-oriented components including a performance exhaust system. Ideal for young or new riders wanting street-focused fun and urban versatility.
- 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 Pro
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Front suspension | R16V inverted fork of Ø40mm | Inverted Fork of Ø40mm. |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a tiny supermoto for sharp, flickable handling on tight tarmac and go-kart-style track days rather than for outright speed or distance.
- Built for
- A fun, high-revving two-stroke minimoto with racy supermoto styling, premium-feeling components like an inverted fork and wave discs, and an eager, playful personality.
- Not ideal for
- This is not the right bike for highway travel, carrying a passenger comfortably, long-distance touring, or riders seeking real off-road or high-speed capability.
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
- Lubrication system
- Separate mixture
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multidisk
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 of Ø40mm.
- Rear suspension
- Gas Mono-shock shock absorber and seaprate bottle PRS system
Brakes & wheels
- Front brakes
- Single disc. Galfer wave disc with double piston caliper
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Galfer wave disc
- Rear brakes diameter
- 200 mm
- Front tyre
- 100/80-17
- Rear tyre
- 130/70-17
Other
- Color options
- Black, Orange, Blue
- 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 | 2017 | 2019 | 2021 | 2022 | 2024 |
|---|---|---|---|---|---|
| Capacity | 50 cc | 50 cc | 50 cc | 50 cc | 50 cc |
| Dry weight | 85 kg | 85 kg | 85 kg | 85 kg | 85 kg |
| Seat height | 870 mm | 870 mm | 870 mm | 870 mm | 870 mm |
| Fuel capacity | 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 Pro?
The 2021 Rieju MRT 50 SM Pro has a Capacity of 50.0 ccm (3.05 cubic inches).
What engine power does the Rieju MRT 50 SM Pro have?
The 2021 Rieju MRT 50 SM Pro has a Power of 5.4 HP (4.0 kW).
How many gears does the Rieju MRT 50 SM Pro have?
The 2021 Rieju MRT 50 SM Pro has a Gearbox of 6-speed.
How much does the Rieju MRT 50 SM Pro weigh?
The 2021 Rieju MRT 50 SM Pro has a Dry weight of 85.0 kg (187.4 pounds).
Shop this bike
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The 2021 Rieju MRT 50 SM Pro is a stunning and versatile motorcycle that delivers an exhilarating riding experience. With its lightweight and agile design, this bike is perfect for navigating through city streets and handling tight corners with ease. The powerful 50cc engine provides excellent acceleration, while the upgraded suspension and braking system ensure maximum control and safety. The sleek and modern styling of the MRT 50 SM Pro is sure to turn heads wherever you go, making it a great choice for riders who want to stand out.
Overall, the 2021 Rieju MRT 50 SM Pro offers a fantastic combination of performance, style, and agility. Whether you're a beginner looking for a fun and easy-to-handle bike or a seasoned rider seeking a nimble and powerful machine, this motorcycle has something to offer. With its impressive features and striking appearance, the MRT 50 SM Pro is a top contender in the 50cc motorcycle category and is worth considering for anyone in the market for a new ride.
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