Aprilia RX 125 (reduced Effect) - 1986 Specifications and Reviews

The 1986 Aprilia RX 125 is a lightweight, entry-level off-road machine ideal for novice riders and youth enthusiasts. Powered by a modest 124cc liquid-cooled single-cylinder engine producing 9 horsepower, it excels in trail riding and learning fundamental motorcycle skills. Its minimalist design and manageable weight of 91 kg make it accessible and forgiving for building confidence in unpaved terrain.

1986
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General information

CategoryUnspecified category
Year1986
ModelAprilia RX 125 (reduced effect)

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
Cooling systemLiquid
Fuel controlMembrane
Bore x stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Compression14.5:1
Power9.00
Stroke2
Engine typeSingle cylinder
Capacity:124.00 ccm (7.57 cubic inches)
 
 

Physical measures and capacities

Weight incl. oil, gas, etc91.0 kg (200.6 pounds)

Aprilia RX 125 (reduced Effect) dimensions and frame

Rear brakesExpanding brake
Front brakesSingle disc
Rear tyre dimensions4.00-18
Front tyre dimensions3.00-21

Speed and acceleration

Top speed130.0 km/h (80.8 mph)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity8.50 litres (2.25 gallons)

Performance Profile & Rider Fit

9 hp
Peak Power
80.8 mph
Top Speed

Best For

Track25%
City55%
Cornering60%
Daily Riding35%
Touring20%
Passenger15%

Rider Profile

Best ForThis is a restricted, learner-legal small-bore two-stroke, well suited to new or young riders easing into motorcycling.
PurposeIts low power output, light 91 kg weight, and 21-inch front wheel point to a lightweight enduro-styled machine intended mainly for casual road use with mild off-road pretensions rather than outright speed.
Rider FitThe tiny 124cc engine and featherweight chassis make it extremely unintimidating and easy to manage for smaller or less experienced riders.
CharacterIt has the playful, buzzy character typical of an 80s two-stroke single, rewarding revs and momentum-carrying riding over raw power.
Not Ideal ForIt is not suitable for riders wanting highway speeds, long-distance touring comfort, or carrying a passenger any real distance.

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

Rider Reviews

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