Key performance

15 ch
Power
🔧
124 cc
Displacement
⚖️
120 kg
Weight
🏎️
120 km/h
Top speed
💺
905 mm
Seat height
7.5 L
Fuel capacity
💰
3 549 €
New price
Compare the Aprilia RX 125 with: Choose a motorcycle →

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.

Aprilia RX 125

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.

Aprilia RX 125

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.

Aprilia RX 125

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

Indicators & positioning

Weight-to-power ratio
0.13 ch/kg
🔄
Torque / weight
0.09 Nm/kg
🔧
Volumetric power
120.8 ch/L
In category Enduro / offroad · 62-248cc displacement (982 motorcycles compared)
Power 15 ch Top 36%
7 ch median 15 ch 27 ch
Weight 120 kg Lighter than 31%
72 kg median 111 kg 137 kg
P/W ratio 0.13 ch/kg Top 44%
0.08 median 0.12 0.23 ch/kg

Similar bikes

Frequently Asked Questions

Reviews & comments

No reviews yet. Be the first to share your opinion!