Aprilia Mini RX 50 Challenge - Specifications & Review

Mini RX 50 Challenge

Article Complete Info

Articleid687438
CategoryMinibike-cross
MakeAprilia
ModelMini RX 50 Challenge
Year2005

Chassis, Suspension, Brakes & Wheels

FrontbrakesExpanding brake (drum brake)
FrontsuspensionMechanical
Fronttyre14-2.50
Frontwheeltravel170 mm (6.7 inches)
RearbrakesExpanding brake (drum brake)
RearsuspensionHydraulic monoshock
Reartyre12-3.00
Rearwheeltravel245 mm (9.6 inches)

Engine & Transmission

Borexstroke39.0 x 41.7 mm (1.5 x 1.6 inches)
ClutchMultiple disk in oil bath
Compression9.0:1
CoolingsystemAir
Displacement49.80 ccm (3.04 cubic inches)
EnginedetailsSingle cylinder, two-stroke
FuelsystemCarburettor. Dell’Orto PHBN 14 MS
LubricationsystemSeparate mixing with variable displacement pump
Power3.00 HP (2.2 kW))
TransmissiontypefinaldriveChain

Other Specifications

CommentsSuggested age group 8-12 years
StarterKick

Physical Measures & Capacities

Dryweight38.0 kg (83.8 pounds)
Groundclearance280 mm (11.0 inches)
Powerweightratio0.0789 HP/kg
Seatheight734 mm (28.9 inches) If adjustable, lowest setting.

About Aprilia

Country of Origin: Italy
Founder: Cavaliere Alberto Beggio (later led by Ivano Beggio)
Best Known For: GP-winning two-strokes (RS125/250), RSV superbikes, and cutting-edge electronics

Company History

Aprilia started in Noale after WWII as a bicycle company before pivoting to mopeds and small-displacement motorcycles. Under Ivano Beggio in the 1970s–90s, Aprilia embraced racing as R&D, building fierce RS125/250 two-strokes that produced world champions and taught countless Europeans how a chassis should feel. The brand’s road lineup mirrored podium lessons: lightweight frames, sharp geometry, and brakes from the top shelf. With the RSV Mille, later RSV4, Aprilia brought V-twin then V-4 sophistication to superbikes, pairing compact engines with electronics that arrived early and matured fast—ride-by-wire, APRC traction/wheelie control, and track-calibrated ABS. The Tuono popularized the ‘supernaked’ formula, while the Shiver/Dorsoduro explored middleweight versatility. Scooter successes and the Caponord/Tuareg adventure lines broadened reach without surrendering the handling DNA. Aprilia’s factory in Noale retained a skunkworks spirit, where racing engineers and production teams traded ideas rapidly; the RS-GP MotoGP effort further refined aero and electronics that later influenced streetbikes. Historically, Aprilia matters because it democratized race feel: crisp steering, clear feedback, and tech that flatters riders rather than overwhelms them. Owners speak of precision—bikes that reward clean inputs and repay attention to tire pressures and setup. In the pantheon of Italian marques, Aprilia stands for modernity: less baroque drama, more lap-time logic, and an insistence that every model carry a little paddock in its genes.

Other Years

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