Aprilia RX 125 - 2019 Specifications and Reviews

The 2019 Aprilia RX 125 is a lightweight enduro designed for novice and young off-road riders seeking an accessible introduction to dirt biking. Its compact 124cc four-stroke engine delivers manageable power with modern fuel injection and liquid cooling, making it reliable for trail riding and off-road exploration. Known for its nimble handling and approachable performance, the RX 125 excels as a learner-friendly platform that doesn't compromise on quality engineering.

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General information

CategoryEnduro / offroad
Year2019
ModelAprilia RX 125
 
 

Engine and Transmission Specifications

Emission detailsEuro 4
DrivelinePrimary drive: Gearbox: 63/19 (3.31). Final drive: Chain: 17/40 (2.35).
ClutchMulti-plate in oil bath.
Transmission typeChain   (final drive)
Gearbox6-speed
Cooling systemLiquid
Lubrication systemWet sump
IgnitionElectronic with CDI capacity discharge
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection. Magneti Marelli M3G ø 32mm ECU
Valves per Cylinder4
Bore x Stroke58.0 x 47.0 mm (2.3 x 1.9 inches)
Compression12.5:1
Torque10.9 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 8250 RPM
Power15.0 HP (10.9 kW) @ 10500 RPM
Engine typeSingle cylinder, four-stroke
Capacity:124.2 ccm (7.58 cubic inches)

Brakes, suspension, Frame and wheels

WheelsAluminium spoked wheel.
Rear brakesSingle disc. Floating calliper
Diameter300 mm (11.8 inches)
Front brakesSingle disc. Floating calliper
Rear tire120/80-18
Front tire90/90-21
Rear wheel travel220 mm (8.7 inches)
Rear SuspensionHydraulic monoshock absorber with progressive link system.
Front wheel travel240 mm (9.4 inches)
Front SuspensionØ 41 mm telescopic upside down fork
Frame typeSteel perimeter

Physical measures and capacities

Fuel capacity7.50 litres (1.98 US gallons)
Wheelbase1350 mm (53.1 inches)
Seat height905 mm (35.6 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc120.0 kg (264.6 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric
Color optionsBlack/red

Performance Profile & Rider Fit

15 hp
Peak Power

Best For

Track10%
City45%
Cornering55%
Daily Riding40%
Touring20%
Passenger15%

Rider Profile

Best ForWell suited to beginner and learner riders thanks to its light weight, low power, and manageable seat height.
PurposeDesigned primarily for light trail riding, green-laning, and off-road learning rather than speed or distance.
Rider FitIts low dry weight and tall but slim enduro seat make it easy to manage for smaller or less experienced riders once moving, though the seat height can challenge shorter riders at a stop.
CharacterA nimble, playful small-capacity enduro that rewards momentum and finesse over outright power.
Not Ideal ForNot suited for riders wanting high-speed touring, motorway cruising, or carrying a passenger in comfort.

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

Rider Fit Visualizer

2019 Aprilia RX 125 Rider Ergonomics Assessment

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

Feet:

At 905mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2019 Aprilia RX 125, 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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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2019 Aprilia RX 125 is a fantastic entry-level dirt bike that offers great performance and handling. Its 125cc engine provides plenty of power for off-road adventures, and its lightweight design makes it easy to maneuver through tough terrain. The bike also features high-quality components, including a robust frame and suspension system, ensuring a smooth and responsive ride. With its stylish Italian design and reliable performance, the Aprilia RX 125 is a great choice for riders looking to kickstart their off-road journey. Overall, the 2019 Aprilia RX 125 is a top-notch dirt bike that delivers on both style and performance. Its powerful engine, lightweight design, and high-quality components make it a great option for beginners and experienced riders alike. Whether you're tearing up the trails or cruising through the countryside, the Aprilia RX 125 offers an exhilarating and reliable off-road experience. If you're in the market for a versatile and capable dirt bike, the Aprilia RX 125 is definitely worth considering.
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