14 August. Friday 2026
Aprilia RX 125 - 2021 Specifications and Reviews
The 2021 Aprilia RX 125 is a lightweight enduro bike designed for young riders and beginners exploring off-road terrain. Powered by a 124cc four-stroke single-cylinder engine producing 15 horsepower, it offers nimble handling and manageable performance for skill development. Known for its affordability and reliability, the RX 125 excels as an entry-level off-road machine that builds rider confidence on varied terrain.
2021
General information | |
| Price as new | 3.4 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. |
| Category | Enduro / offroad |
| Year | 2021 |
| Model | Aprilia RX 125 |
Engine and Transmission Specifications | |
| Emission details | Euro 4 |
| Greenhouse gases | 63.3 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 2.73 litres/100 km (36.6 km/l or 86.16 mpg) |
| Driveline | Primary drive: Gearbox: 63/19 (3.31). Final drive: Chain: 17/40 (2.35). |
| Clutch | Multi-plate in oil bath. |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Wet sump |
| Ignition | Electronic with CDI capacity discharge |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. Magneti Marelli M3G ø 32mm ECU |
| Valves per Cylinder | 4 |
| Bore x Stroke | 58.0 x 47.0 mm (2.3 x 1.9 inches) |
| Compression | 12.5:1 |
| Torque | 10.9 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 8250 RPM |
| Power | 15.0 HP (10.9 kW) @ 10500 RPM |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 124.2 ccm (7.58 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | Aluminium spoked wheel. |
| Rear brakes | Single disc. Floating calliper |
| Diameter | 300 mm (11.8 inches) |
| Front brakes | Single disc. Floating calliper. Front wheel only ABS. |
| Rear tire | 120/80-18 |
| Front tire | 90/90-21 |
| Rear wheel travel | 220 mm (8.7 inches) |
| Rear Suspension | High resistance steel swingarm. Hydraulic monoshock absorber with progressive link system. |
| Front wheel travel | 240 mm (9.4 inches) |
| Front Suspension | Ø 41 mm telescopic upside down fork |
| Frame type | Steel perimeter |
| | |
Physical measures and capacities | |
| Fuel capacity | 7.50 litres (1.98 US gallons) |
| Wheelbase | 1350 mm (53.1 inches) |
| Seat height | 905 mm (35.6 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.1210 HP/kg |
| Weight incl. oil, gas, etc | 134.0 kg (295.4 pounds) |
| Dry weight | 124.0 kg (273.4 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Starter | Electric |
| Color options | Red Raceway |
Performance Profile & Rider Fit
15 hp
Peak Power
Best For
Track10%
City45%
Cornering55%
Daily Riding40%
Touring20%
Passenger15%
Rider Profile
| Best For | Well suited to beginner and learner riders thanks to its light weight, low power, and manageable seat height. |
| Purpose | Designed primarily for light trail riding, green-laning, and off-road learning rather than speed or distance. |
| Rider Fit | Its 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. |
| Character | A nimble, playful small-capacity enduro that rewards momentum and finesse over outright power. |
| Not Ideal For | Not 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.
Shop This Bike
Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2021 Aprilia RX 125 is an impressive lightweight motorcycle that offers a perfect balance of power and agility. With its 125cc engine, this bike delivers a thrilling riding experience while still being accessible for riders with lower levels of experience. The sleek design and high-quality components make the RX 125 a standout in the 125cc motorcycle category. Whether you're navigating city streets or hitting the trails, this bike excels in both urban and off-road environments. Aprilia has once again proven their expertise in creating exceptional motorcycles with the 2021 RX 125. The combination of its powerful engine, advanced suspension, and responsive handling make it a top choice for riders looking for a versatile and fun motorcycle. The striking design and aggressive stance of the RX 125 will appeal to riders who want to make a statement with their motorcycle choice. Overall, the 2021 Aprilia RX 125 is a fantastic option for anyone in the market for a lightweight and capable motorcycle that doesn't compromise on performance.Add a Comment
Related Motorcycle Specifications
More Aprilia Motorcycles
- Motorcycles in database: 45863
- Technical specifications: 1490298
- Images of motorcycles: 72681
- Videos: 339
- Manufacturers: 501
Please Login or Register if you would like to leave a comment.