Rieju MRX 50 Pro - 2007 Specifications and Reviews

The 2007 Rieju MRX 50 Pro is a lightweight enduro designed for younger riders and beginners seeking off-road adventure. Its liquid-cooled single-cylinder engine delivers reliable performance across varied terrain, while the 920mm seat height and 94kg weight make it highly manageable for less experienced pilots. Best known for combining affordability with genuine dirt bike capability.

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Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
Cooling systemLiquid
StarterKick
Fuel systemCarburettor. Dell´Orto
Bore x stroke40.3 x 39.0 mm (1.6 x 1.5 inches)
Stroke2
Engine typeSingle cylinder
Capacity:50.00 ccm (3.05 cubic inches)
 
 

Physical measures and capacities

Wheelbase1,332 mm (52.4 inches)
Overall width790 mm (31.1 inches)
Overall length2,050 mm (80.7 inches)
Overall height1,170 mm (46.1 inches)
Seat height920 mm (36.2 inches) If adjustable, lowest setting.
Dry weight94.0 kg (207.2 pounds)

Rieju MRX 50 Pro dimensions and frame

Exhaust systemWith Catalyst
Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc. Galfer
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc. Galfer double piston
Rear tyre dimensions110/80-18
Front tyre dimensions80/90-21
Rear suspensionMonoshock Absorder Progressive System
Front suspensionUpside Down Front Fork
Frame typePerimetral of double beam in steel of high resistance
 
 

Speed and acceleration

Color optionsBlack, blue, orange
Fuel capacity8.40 litres (2.22 gallons)

CategoryEnduro / offroad
Year2007
ModelRieju MRX 50 Pro

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track15%
City30%
Cornering45%
Daily Riding20%
Touring10%
Passenger5%

Rider Profile

Best ForThis 50cc enduro is best suited to young or beginner riders learning off-road basics rather than experienced riders seeking performance.
PurposeIt is designed as a lightweight, small-displacement trail and learner bike for off-road play rather than any serious speed or distance work.
Rider FitThe tall 920mm seat height combined with a very light dry weight makes it manageable for smaller or lighter riders despite the enduro stance.
CharacterIt has the nimble, playful character typical of small two-stroke enduros, with quick handling but very limited outright power.
Not Ideal ForIt is not suitable for highway travel, two-up riding, or anyone expecting real touring range or top-end speed.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2007 Rieju MRX 50 Pro Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 920mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2007 Rieju MRX 50 Pro, with a cramped knee angle of around 80 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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