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Motocross Bikes

2005Rieju 50 MX

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The 2005 Rieju 50 MX is an entry-level minibike designed for young riders and beginners learning fundamental motocross skills. Its lightweight 46 kg frame, compact 740 mm seat height, and automatic transmission make it accessible and manageable for inexperienced pilots. Known for reliable two-stroke performance and nimble handling, this Spanish-built machine excels in off-road training and casual trail riding.

Capacity
50.0 ccm
Engine
Single, two-stroke
Gearbox
Not on record
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Dry weight
46.0 kg
Seat height
740 mm
Power
5.4 HP (4.0 kW)
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How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 15Agility 80Comfort 25Off-road 55Touring 5Road manners 15
Off-road & trail55%
Cornering40%
City riding15%
Daily riding10%
Touring5%
Two-up5%
Track10%
Best for
Built as an entry-level minibike for learning basic off-road riding skills in yards, small tracks, or light trails.
Built for
A simple, forgiving, low-powered playbike with an automatic gearbox that prioritizes ease of use and confidence-building over speed or capability.
Not ideal for
This bike is not suitable for adults, highway use, touring, or anyone seeking real off-road performance or passenger carrying.

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 us
At 740mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2005 Rieju 50 MX, with a cramped knee angle of around 60 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Full specifications

Engine
Capacity
50.0 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
2.80 litres
Chassis & suspension
Frame
Perimetral chassis (double beam).
Front suspension
Telescopic Fork
Rear suspension
Hydraulic monoshoch
Brakes & wheels
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)
Front tyre
2.50-15
Rear tyre
3.00-12

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

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Common questions

What is the engine size of the Rieju 50 MX?

The 2005 Rieju 50 MX has a Capacity of 50.0 ccm (3.05 cubic inches).

What engine power does the Rieju 50 MX have?

The 2005 Rieju 50 MX has a Power of 5.4 HP (4.0 kW).

How much does the Rieju 50 MX weigh?

The 2005 Rieju 50 MX has a Dry weight of 46.0 kg (101.4 pounds).

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