Aprilia Rx 125
The Aprilia RX 125 is a two-stroke off-road/enduro motorcycle that was introduced in the late 1980s and became a staple of Aprilia's lightweight dirt bike lineup through the 1990s and early 2000s. It was praised for its competitive performance in the 125cc off-road segment, featuring a liquid-cooled two-stroke engine and motocross-inspired chassis. The model was later revived in a modern four-stroke form in 2018 to comply with Euro4 emissions regulations, targeting a new generation of young and beginner off-road riders.
~15 hp
Power
~13 Nm
Torque
~107 kg
Weight
~100 km/h — Note: estimate; varies between two-stroke and four-stroke generations
Top Speed
~3.5 L/100km (est. 28 km/L) — Note: estimate based on typical 125cc four-stroke off-road usage; two-stroke variants may vary
Fuel
Naked
Body
What Buyers Should Know
2-Stroke Engine Watch
The RX 125 uses a 2-stroke engine that requires regular top-end rebuilds (piston and rings) every 3,000–5,000 km. Always check maintenance history and listen for unusual piston slap before buying.
Proven Off-Road Pedigree
Built on Aprilia's enduro racing heritage, the RX 125 features a lightweight frame and long-travel suspension that outperforms most competitors in its class. This makes it a sought-after bike for trail riding enthusiasts.
Strong Resale Value
Well-maintained examples hold their value better than many 125cc competitors due to Aprilia's brand reputation and limited supply. Bikes with documented service history and original parts command a noticeable premium.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Aprilia Rx 125




