Key performance
Technical specifications
Engine
- Displacement
- 124 cc
- Power
- 15.0 ch @ 10500 tr/min (10.9 kW)
- Torque
- 10.9 Nm @ 8250 tr/min
- Engine type
- Single cylinder, four-stroke
- Cooling
- Liquid
- Compression ratio
- 12.5:1
- Bore × stroke
- 58.0 x 47.0 mm (2.3 x 1.9 inches)
- Valves/cylinder
- 4
- Camshafts
- 2 ACT
- Fuel system
- Injection. Magneti Marelli M3G ø 32mm ECU
- Valve timing
- Double Overhead Cams/Twin Cam (DOHC)
- Lubrication
- Wet sump
- Ignition
- Electronic with CDI capacity discharge
- Starter
- Electric
Chassis
- Frame
- Steel perimeter
- Gearbox
- 6-speed
- Final drive
- Chain (final drive)
- Clutch
- Multi-plate in oil bath.
- Front suspension
- Ø 41 mm telescopic upside down fork
- Rear suspension
- Hydraulic monoshock absorber with progressive link system.
- Front wheel travel
- 240 mm (9.4 inches)
- Rear wheel travel
- 220 mm (8.7 inches)
Brakes
- Front brakes
- Single disc. Floating calliper
- Rear brakes
- Single disc. Floating calliper
- Front tyre
- 90/90-21
- Rear tyre
- 120/80-18
Dimensions
- Seat height
- 905.00 mm
- Wheelbase
- 1350.00 mm
- Fuel capacity
- 7.50 L
- Weight
- 120.00 kg
- New price
- 3 549 €
Overview
When Aprilia brings the Aprilia RX 125 out of its boxes, it’s not to offer a forestry competition tool. It’s to embody something that the Japanese struggle to offer in this segment: a strong visual identity, a taut line that looks towards the larger Italian enduros, and that little thrill of pride when you park the motorcycle by the side of the road. The RX isn't there to win races, it's there for people to notice it.

The question everyone has been asking since its return deserves a direct answer. Is the Aprilia RX 125 a 2-stroke? No, not for several years. The transition to Euro 4 standards, and then the evolution to the Aprilia RX 125 Euro 5, definitively buried the 2-stroke single-cylinder that made the older versions famous. The Aprilia RX 125 4T that equips this 2019 model year delivers 15 horsepower at 10,500 rpm and 10.90 Nm of torque at 8,250 rpm. It's sensible, measured, sometimes frustrating on acceleration compared to what a well-formed 2T could spit out. But the advantages are real: reduced consumption, simplified maintenance, and mechanical longevity that older 2-strokes simply couldn't promise.
The chassis, however, doesn't disappoint. The steel perimeter frame encloses a 41 mm inverted fork and a progressive-link hydraulic monoshock that offer generous travel to swallow poorly maintained trails. The high seat at 905 mm immediately warns smaller riders, but it positions the pilot in authority on the machine. The 21-inch front wheel and the 120/80-18 rear tire mounted on spoked rims immediately sign the Aprilia RX 125 enduro, unlike the SX supermotard which shares the same basic architecture. Between the two sisters, everything is a matter of tires, the transmission’s 6-speed ratio, and the diameter of the front disc. Not much, therefore, but enough to radically change the register of use.

What is more surprising in the technical specifications of this Aprilia RX 125 2019 is the care given to the braking system. The floating calipers on the single disc, both front and rear, are complemented by an ABS that doesn't just prevent wheel lockup. The anti-dive function, inherited from the Superbike models, intervenes to control the rear wheel lift during braking. On a 125 kg when fully fueled, displaying a top speed of 120 km/h, this is a technological generosity that machines twice as expensive don't always offer. The Aprilia RX 125 price at €3,549 therefore integrates a level of equipment that far exceeds the expectations of the segment.

However, it’s pointless to go and provoke a KTM EXC or a Yamaha WR on technical trails. The 124 cc engine and its 12.5:1 compression ratio are not designed for that, and the power runs out where the real competition enduros continue to accelerate. The Aprilia RX 125 is primarily aimed at young A1 license holders who want to get started in off-road riding without ending up with an unmanageable machine, or to more experienced riders who are looking for a lightweight and well-presented introductory machine for relaxed weekends. It plays the card of style as much as that of technology, and it claims it without complex. In a market where 125 cm³ off-road models often look like generic plastics screwed onto frames without character, this Italian retains a sufficiently distinct face so that the question doesn't arise twice.
Standard equipment
- Assistance au freinage : ABS
Practical info
- La moto est accessible aux permis : A
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