Enduro Bikes
2026Rieju Marathon 125 PRO
31 fields on record
The 2026 Rieju Marathon 125 Pro is a lightweight enduro designed for beginner to intermediate off-road riders seeking affordable trail capability. Powered by a reliable 15 HP Minarelli four-stroke engine with liquid cooling and fuel injection, it combines practical performance with a sturdy steel frame and detachable rear subframe for easy maintenance. Best known for delivering dependable entry-level off-road versatility at an accessible price point.
- Capacity
- 125.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 112.0 kg
- Seat height
- 896 mm
- Power
- 15.0 HP (10.9 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It is built primarily for trail riding, technical enduro tracks, and low-speed off-road exploration rather than any kind of speed or highway work.
- Built for
- It has the character of a nimble, willing little enduro trail bike, eager to be flicked around obstacles but with only modest engine punch.
- Not ideal for
- It is not suited to riders wanting sustained highway speeds, long-distance touring comfort, or carrying a passenger any real distance.
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 (10.9 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1339 HP/kg (dry)
- Bore x stroke
- 52.0 x 58.7 mm
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Valves per cylinder
- 4
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1405 mm
- Overall length
- 2148 mm
- Overall width
- 800 mm
- Overall height
- 1165 mm
- Seat height
- 896 mm
- Dry weight
- 112.0 kg
- Fuel capacity
- 6.00 litres
- Ground clearance
- Not on record - add it
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. Galfer wave disc with double piston caliper
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. Galfer Wave
- Rear brakes diameter
- 200 mm
- Front tyre
- 90/90-21
- Rear tyre
- 120/90-18
Other
- Color options
- Black/white/red, black/red
- 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 | 2016 | 2019 | 2023 | 2026 |
|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 108 kg | 121 kg | 121 kg | 121 kg | 112 kg |
| Seat height | 900 mm | 890 mm | 890 mm | 890 mm | 896 mm |
| Fuel capacity | 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 PRO?
The 2026 Rieju Marathon 125 PRO has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the Rieju Marathon 125 PRO have?
The 2026 Rieju Marathon 125 PRO has a Power of 15.0 HP (10.9 kW).
How many gears does the Rieju Marathon 125 PRO have?
The 2026 Rieju Marathon 125 PRO has a Gearbox of 6-speed.
How much does the Rieju Marathon 125 PRO weigh?
The 2026 Rieju Marathon 125 PRO has a Dry weight of 112.0 kg (246.9 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.