Aprilia Mini RX 50 Entry/challenge/experience - 2004 Specifications and Reviews

The 2004 Aprilia Mini RX 50 is a lightweight entry-level enduro designed for young and novice riders learning off-road skills. Its compact 50cc air-cooled engine delivers modest power while the low 734mm seat height and featherweight 35kg chassis ensure accessibility and confidence-building handling on dirt terrain.

2004
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Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox1-speed
Cooling systemAir
Fuel systemCarburettor
Bore x stroke39.0 x 41.3 mm (1.5 x 1.6 inches)
Compression9.0:1
Power9.00
Stroke2
Engine typeSingle cylinder
Capacity:49.70 ccm (3.03 cubic inches)
 
 

Physical measures and capacities

Seat height734 mm (28.9 inches) If adjustable, lowest setting.
Dry weight35.0 kg (77.2 pounds)
 
 

Aprilia Mini RX 50 Entry/challenge/experience dimensions and frame

Rear brakesExpanding brake (drum brake)
Front brakesSingle disc
Frame typeSteel tube

Speed and acceleration

Power/weight ratio0.2571 HP/kg

CategoryEnduro / offroad
Year2004
ModelAprilia Mini RX 50 Entry/Challenge/Experience

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsRed/black
Fuel capacity2.80 litres (0.74 gallons)

Performance Profile & Rider Fit

9 hp
Peak Power

Best For

Track20%
City15%
Cornering40%
Daily Riding5%
Touring5%
Passenger0%

Rider Profile

Best ForThis is a minibike built for young or beginner riders, typically kids learning basic throttle and brake control, not experienced adults.
PurposeDesigned as a small-format training and fun bike for backyard, schoolyard, or supervised off-road play rather than any serious performance or racing use.
Rider FitIts tiny 734 mm seat height and 35 kg weight make it suited only to small, lightweight riders such as children or very petite teens.
CharacterPlayful, lightweight, and simple, with a single-speed gearbox and modest 9 hp output that prioritizes approachability over excitement.
Not Ideal ForIt is not suitable for adult riders, highway use, touring, or anyone seeking real speed or long-distance capability.

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

Rider Fit Visualizer

2004 Aprilia Mini RX 50 Entry/challenge/experience Rider Ergonomics Assessment

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

Feet:

At 734mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2004 Aprilia Mini RX 50 Entry/challenge/experience, with a cramped knee angle of around 60 degrees and a slightly forward riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). 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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