2025 Aprilia SX 125 Overview Aprilia brings its racing DNA to the super motard segment with the 2025 SX 125, a compact and capable machine d...
2025 Aprilia SX 125 Overview
Aprilia brings its racing DNA to the super motard segment with the 2025 SX 125, a compact and capable machine designed for urban riding and off-road adventures. With its single cylinder four-stroke engine producing 14.8 HP and lightweight 134 kg chassis, this bike offers accessible performance for new riders while maintaining the premium build quality Aprilia is known for. Positioned as a versatile super motard, the SX 125 combines street legality with dirt-bike styling, making it perfect for city commutes and weekend trail excursions. The bike's aggressive styling, complete with color options like Red Flash, Yellow Stark, and Silver Alien Blue, ensures it stands out from the crowd.
Engine & Performance Specifications
The heart of the SX 125 is its 124.2 ccm single cylinder four-stroke engine, featuring a high 12.6:1 compression ratio that contributes to its strong performance characteristics. With 14.8 HP @ 10,000 RPM and 11.2 Nm of torque @ 8,000 RPM, this engine delivers smooth power across the rev range. The 58.0 x 47.0 mm bore and stroke configuration, combined with 4 valves per cylinder and DOHC fuel control, ensures efficient combustion and responsive throttle response. The Magneti Marelli MIUG4 injection system with 32 mm throttle body provides precise fuel delivery, while the liquid cooling system maintains optimal operating temperatures.
Performance figures show this lightweight super motard achieves an impressive 38.5 km/l fuel efficiency (2.60 litres/100 km or 90.47 mpg), making it economical for daily riding. Emissions are kept in check with Euro 5 compliance, producing 60.3 g/km CO₂. The 6-speed gearbox with multi-plate wet clutch and chain final drive provides smooth, reliable power transmission to the rear wheel.
Chassis & Dimensions
Aprilia engineers have crafted the SX 125 around a twin-tube steel frame that provides excellent rigidity and handling precision. The 1425 mm wheelbase strikes a perfect balance between stability and agility, while the 880 mm seat height makes it accessible to a wide range of riders. At just 134 kg wet weight, this super motard feels light and nimble, measuring 2075 mm in length, 820 mm in width, and 1140 mm in height.
The compact dimensions and low center of gravity enhance maneuverability in urban environments and technical trail sections. The 7-litre fuel tank capacity is adequate for daily use, and the bike's overall proportions make it comfortable for riders of various sizes. The steel swingarm provides durability and precise rear wheel alignment, contributing to the bike's predictable handling characteristics.
Brakes, Suspension & Wheels
Suspension duties are handled by quality components that inspire confidence on varied surfaces. The front suspension features an upside-down fork with 41 mm stanchions offering 240 mm of travel, providing excellent bump absorption and feedback. Rear suspension consists of a steel swingarm with a monoshock and progressive link system, delivering 210 mm of wheel travel for composed handling over rough terrain.
Stopping power comes from a single 300 mm front disc with floating caliper and ABS, paired with a 220 mm rear disc. This braking combination provides strong, progressive stopping power suitable for both street and off-road use. Wire-spoked wheels shod with 100/80-R17 front and 130/70-R17 rear tires offer a good compromise between road grip and off-road capability, while the 13/62 drive ratio ensures responsive acceleration.
Technology & Features
The SX 125 features modern electronics and instrumentation befitting its premium positioning. The digital dashboard provides all essential information in a clear, easy-to-read format. The ECU electronics system manages fuel injection and ignition timing for optimal performance and efficiency. Electric starting ensures reliable, hassle-free ignition in all conditions.
ABS braking enhances safety by preventing wheel lockup during hard stops, particularly on wet or loose surfaces. The injection system with its 32 mm throttle body ensures crisp throttle response and smooth power delivery. While Aprilia keeps the SX 125 relatively simple electronically, the systems that are present work together seamlessly to provide a modern riding experience.
Complete Specifications Table
| Specification | Value |
|---|---|
| Engine | |
| Type | Super motard |
| Engine size | 124.2 ccm (7.58 cubic inches) |
| Type of engine | Single cylinder, four-stroke |
| Output | 14.8 HP (10.8 kW) @ 10000 RPM |
| Torque | 11.2 Nm (1.1 kgf-m or 8.3 ft.lbs) @ 8000 RPM |
| Compression | 12.6:1 |
| Bore x stroke | 58.0 x 47.0 mm (2.3 x 1.9 inches) |
| Valves per cylinder | 4 |
| Fuel system | Injection |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | ECU Electronics Magneti Marelli MIUG4 ø 32 mm |
| Lubrication system | Wet sump |
| Cooling system | Liquid |
| Transmission | |
| Gearbox | 6-speed |
| Transmission type | Chain (final drive) |
| Clutch | Multi plate wet |
| Driveline | Drive ratio 13/62 |
| Chassis & Frame | |
| Frame type | Twin-tube steel |
| Suspension | |
| Front suspension | Upside down fork with Ø 41 mm stanchions. |
| Front wheel travel | 240 mm (9.4 inches) |
| Rear suspension | Steel swingarm, monoshock with progressive link system |
| Rear wheel travel | 210 mm (8.3 inches) |
| Brakes | |
| Front brakes | Single disc. ABS. Floating calliper. |
| Diameter | 300 mm (11.8 inches) |
| Rear brakes | Single disc. Floating calliper |
| Diameter | 220 mm (8.7 inches) |
| Wheels & Tires | |
| Wheels | Wire spoked. |
| Front tire | 100/80-R17 |
| Rear tire | 130/70-R17 |
| Dimensions | |
| Weight incl. oil, gas, etc | 134.0 kg (295.4 pounds) |
| Seat height | 880 mm (34.6 inches) If adjustable, lowest setting. |
| Overall height | 1140 mm (44.9 inches) |
| Overall length | 2075 mm (81.7 inches) |
| Overall width | 820 mm (32.3 inches) |
| Wheelbase | 1425 mm (56.1 inches) |
| Fuel & Capacity | |
| Fuel capacity | 7.00 litres (1.85 US gallons) |
| Electrical & Electronics | |
| Starter | Electric |
| Instruments | Digital dashboard |
| Performance | |
| Fuel consumption | 2.60 litres/100 km (38.5 km/l or 90.47 mpg) |
| Greenhouse gases | 60.3 CO₂ g/km. (CO2 - Carbon dioxide emission) |
| Emission details | Euro 5 |
| Other technical specifications | |
| Color options | Red Flash, Yellow Stark, Silver Alien Blue, Black Spider, White Wonder |
Specifications Summary
- Engine: 124.2cc single cylinder four-stroke, 14.8 HP @ 10,000 RPM, 11.2 Nm torque @ 8,000 RPM
- Transmission: 6-speed, chain final drive with 13/62 ratio
- Chassis: Twin-tube steel frame, 1425 mm wheelbase, 134 kg wet weight
- Dimensions: 880 mm seat height, 2075 mm length, 820 mm width, 1140 mm height
- Suspension: 41mm USD fork (240mm travel), rear monoshock with progressive link (210mm travel)
- Brakes: 300mm front disc with ABS, 220mm rear disc, floating calipers
- Wheels & Tires: Wire-spoked wheels, 100/80-R17 front, 130/70-R17 rear
- Fuel & Capacity: 7-litre tank capacity
- Electronics: ABS, digital dashboard, ECU electronics with injection
- Performance: 38.5 km/l fuel efficiency, Euro 5 emissions compliance
Conclusion
The 2025 Aprilia SX 125 represents an excellent choice for riders seeking a versatile super motard that bridges the gap between street and off-road capability. Its 124.2cc engine delivers accessible power perfect for new riders and urban environments, while the quality suspension and braking systems provide confidence in diverse riding conditions. The lightweight 134 kg chassis, combined with compact dimensions and a comfortable 880 mm seat height, makes this bike approachable for a wide range of riders. Aprilia's premium build quality, modern electronics including ABS, and distinctive styling in multiple color options position the SX 125 as a compelling option in the super motard segment. Whether navigating city streets or exploring dirt tracks, this motorcycle offers an engaging riding experience with the reliability and sophistication expected from the Aprilia brand.
Source: Entertainment News
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