Supermotos
2023Rieju Marathon 125 SM Pro
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The 2023 Rieju Marathon 125 SM Pro is a lightweight supermoto designed for riders seeking agile urban performance and weekend adventure riding. Powered by a fuel-injected 125cc four-stroke engine with modern suspension technology, it excels in nimble handling and versatility across mixed terrain. Known for its affordable entry into supermoto riding, this machine combines sporty styling with practical everyday usability.
- Capacity
- 125.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 121.0 kg
- Seat height
- 870 mm
- Power
- 15.0 HP (11.0 kW)
What’s new for the 2023 Rieju Marathon 125 SM Pro
vs the 2022| Spec | 2022 | 2023 |
|---|---|---|
| Torque | 10.5 Nm (1.1 kgf-m or 7.7 ft.lbs) @ 8000 RPM | 11.0 Nm (1.1 kgf-m or 8.1 ft.lbs) @ 8000 RPM |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Designed for flickable urban riding and sharpened cornering fun rather than outright speed or distance covering.
- Built for
- A nimble, high-revving small-bore supermoto that rewards an energetic, momentum-focused riding style.
- Not ideal for
- Not a good match for riders wanting sustained highway speeds, long-distance touring comfort, or serious off-road 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
- 125.0 ccm
- Power
- 15.0 HP (11.0 kW)
- Torque
- 11.0 Nm (1.1 kgf-m) @ 8000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1240 HP/kg (dry)
- Bore x stroke
- 52.0 x 58.6 mm
- Cooling system
- Air
- Fuel system
- Injection
- Starting
- Electric
- Valves per cylinder
- 4
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
- 121.0 kg
- Fuel capacity
- 6.30 litres
Chassis & suspension
- Frame
- Highly resistant double cradle steel perimeter. Detachable rear sub-chassis.
- Front suspension
- R16v inverted Fork of Ø40mm.
- Rear suspension
- Gas Mono-shock Shock absorber and Seaprate Bottle Prs System
Brakes & wheels
- Front brakes
- Single disc. Double piston caliper. Galfer wave disk.
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Galfer wave disk.
- Rear brakes diameter
- 200 mm
- Front tyre
- 100/80-17
- Rear tyre
- 130/70-17
Other
- Color options
- Black/red, white/red
- Comments
- Spanish brand.
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 | 2017 | 2019 | 2022 | 2023 | 2024 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 95 kg | 95 kg | 121 kg | 121 kg | 121 kg | 112 kg |
| Seat height | 870 mm | 870 mm | 870 mm | 870 mm | 870 mm | 876 mm |
| Fuel capacity | 6.3 L | 6.3 L | 6.3 L | 6.3 L | 6.3 L | 6 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 Marathon 125 SM Pro?
The 2023 Rieju Marathon 125 SM Pro has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the Rieju Marathon 125 SM Pro have?
The 2023 Rieju Marathon 125 SM Pro has a Power of 15.0 HP (11.0 kW).
How many gears does the Rieju Marathon 125 SM Pro have?
The 2023 Rieju Marathon 125 SM Pro has a Gearbox of 6-speed.
What is the torque of the Rieju Marathon 125 SM Pro?
The 2023 Rieju Marathon 125 SM Pro has a Torque of 11.0 Nm (1.1 kgf-m or 8.1 ft.lbs) @ 8000 RPM.
How much does the Rieju Marathon 125 SM Pro weigh?
The 2023 Rieju Marathon 125 SM Pro has a Dry weight of 121.0 kg (266.8 pounds).
Shop this bike
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The 2023 Rieju Marathon 125 SM Pro is an impressive addition to the Rieju lineup, boasting a sleek design and powerful performance. With its 125cc engine, this supermoto bike delivers an exhilarating ride that is perfect for both urban commuting and off-road adventures. The Pro model also comes equipped with advanced features such as inverted forks, a digital display, and LED lighting, providing riders with a smooth and modern riding experience. Whether you're a seasoned rider or a beginner looking for a reliable and stylish bike, the Rieju Marathon 125 SM Pro is definitely worth considering.
Overall, the 2023 Rieju Marathon 125 SM Pro is a well-built and versatile supermoto bike that offers a blend of functionality and style. Its advanced features, powerful engine, and agile handling make it a great option for riders who are looking for a bike that can handle various terrains and riding conditions. With its sleek design and impressive performance, this bike is sure to turn heads on the road while also providing a thrilling riding experience for anyone who hops on. If you're in the market for a reliable and modern supermoto bike, the Rieju Marathon 125 SM Pro is certainly worth a test ride.
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