Enduro Bikes
2003Rieju MRX 50
29 fields on record
The 2003 Rieju MRX 50 is a lightweight enduro bike designed for beginner and young riders seeking off-road adventure. With its compact 49cc engine and nimble handling, it excels on trails and rough terrain while remaining easy to manage. Known for reliable performance and vibrant color options, it's an ideal entry-level machine for developing off-road skills.
- Capacity
- 49.0 ccm
- Engine
- Single
- Gearbox
- 6-speed
- Dry weight
- 88.0 kg
- Seat height
- 920 mm
- Power
- 8.0 HP (5.9 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as a small-displacement enduro for off-road trails, tight woods riding, and learning fundamentals rather than any serious speed or distance work.
- Built for
- A playful, nimble little two-stroke enduro that rewards revving and momentum over outright power, with genuine off-road hardware like a perimeter frame, long-travel suspension and disc brakes.
- Not ideal for
- It is not for highway commuting, two-up touring, or any rider expecting real acceleration or sustained high-speed cruising.
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
- 49.0 ccm
- Power
- 8.0 HP (5.9 kW)
- Engine type
- Single
- Power/weight ratio
- 0.0909 HP/kg (dry)
- Bore x stroke
- 40.3 x 39.0 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1332 mm
- Overall length
- 2050 mm
- Overall width
- 790 mm
- Overall height
- 1170 mm
- Seat height
- 920 mm
- Dry weight
- 88.0 kg
- Fuel capacity
- 8.40 litres
- Ground clearance
- Not on record - add it
Chassis & suspension
- Frame
- Perimetral of double beam in steel of high resistance
- Front suspension
- Upside Down Front Fork
- Rear suspension
- MonoShock Absorder Progressive System (PRS)
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 80/90-21
- Rear tyre
- 110/80-18
Other
- Color options
- Yellow, Red, Blue
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 | 2003 | 2004 | 2006 | 2007 | 2008 |
|---|---|---|---|---|---|
| Capacity | 49 cc | 49 cc | 50 cc | 50 cc | 50 cc |
| Dry weight | 88 kg | 88 kg | 88 kg | 88 kg | 92 kg |
| Seat height | 920 mm | 920 mm | 920 mm | 920 mm | 920 mm |
| Fuel capacity | 8.4 L | 8.4 L | 5.5 L | 5.5 L | 8.4 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 MRX 50?
The 2003 Rieju MRX 50 has a Capacity of 49.0 ccm (2.99 cubic inches).
What engine power does the Rieju MRX 50 have?
The 2003 Rieju MRX 50 has a Power of 8.0 HP (5.9 kW).
How many gears does the Rieju MRX 50 have?
The 2003 Rieju MRX 50 has a Gearbox of 6-speed.
How much does the Rieju MRX 50 weigh?
The 2003 Rieju MRX 50 has a Dry weight of 88.0 kg (194.0 pounds).
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