Motocross Bikes
2009Rieju MX 50
27 fields on record
The 2009 Rieju MX 50 is a small motocross bike for children learning to ride off-road. Its air-cooled 49cc two-stroke single drives through an automatic transmission and chain. A low 740 mm seat, 46 kg dry weight and 2.5-litre tank make it light and easy to control.
- Capacity
- 49.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- 46.0 kg
- Seat height
- 740 mm
- Power
- 5.4 HP (4.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It is built as a small-capacity kids' or youth cross/minibike for casual off-road play and skill-building rather than serious racing or transport.
- Built for
- Its automatic transmission, drum brakes, and simple air-cooled two-stroke engine give it a forgiving, low-stress, easy-going personality ideal for first-time dirt riding.
- Not ideal for
- It is not suitable for adult riders, highway use, long-distance touring, or anyone seeking real speed or serious off-road performance.
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
- 5.4 HP (4.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.1174 HP/kg (dry)
- Bore x stroke
- 39.0 x 41.8 mm
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Kick
- Lubrication system
- Mixture of gasoline and oil to 2%
Transmission
- Transmission type
- Automatic
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1100 mm
- Overall length
- 1596 mm
- Overall width
- 685 mm
- Overall height
- 995 mm
- Seat height
- 740 mm
- Dry weight
- 46.0 kg
- Fuel capacity
- 2.50 litres
- Ground clearance
- Not on record - add it
Chassis & suspension
- Frame
- Steel
- Front suspension
- Telescopic fork
- Rear suspension
- Hydraulic monoshock
Brakes & wheels
- Front brakes
- Expanding brake (drum brake)
- Rear brakes
- Expanding brake (drum brake)
- Front tyre
- 2.50-15
- Rear tyre
- 3.00-12
Other
- Color options
- Blue/yellow, red
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 | 2006 | 2007 | 2008 | 2009 | 2010 |
|---|---|---|---|---|---|
| Capacity | 49 cc | 49 cc | 49 cc | 49 cc | 50 cc |
| Dry weight | 46 kg | 46 kg | 46 kg | 46 kg | 46 kg |
| Seat height | 740 mm | 740 mm | 740 mm | 740 mm | 740 mm |
| Fuel capacity | 2.8 L | 2.8 L | 2.5 L | 2.5 L | 2.5 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 MX 50?
The 2009 Rieju MX 50 has a Capacity of 49.0 ccm (2.99 cubic inches).
What engine power does the Rieju MX 50 have?
The 2009 Rieju MX 50 has a Power of 5.4 HP (4.0 kW).
How much does the Rieju MX 50 weigh?
The 2009 Rieju MX 50 has a Dry weight of 46.0 kg (101.4 pounds).
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