
Harley-Davidson SX 125
Key specifications
Overview
The 2018 KTM SX 125 stands as a formidable contender in the super motard category, combining lightweight agility with race-bred performance. As a part of KTM’s renowned SX lineup, this bike is engineered for both budding riders and experienced enthusiasts looking to conquer the dirt tracks and twisty backroads alike. With its sleek, aggressive styling in a striking black, grey, and red color scheme, the SX 125 not only looks the part but is also designed to dominate the competition. At the heart of the SX 125 lies a spirited 124.80 ccm single-cylinder, four-stroke engine that churns out an impressive 15 HP at 10,500 RPM, delivering a thrilling experience on every ride. The engine's robust torque output of 10.90 Nm at 8,250 RPM ensures smooth acceleration, while the 6-speed gearbox allows for effortless shifting through the gears, giving riders the confidence to tackle various terrains. The advanced fuel injection system by Magneti Marelli, coupled with a high compression ratio of 12.5:1, enhances performance and efficiency, making this motorcycle a delight for those who crave adrenaline-fueled adventures. The SX 125 is not just about power; it’s packed with features that elevate the riding experience. The aluminum perimeter frame provides exceptional rigidity without compromising weight, tipping the scales at just 120 kg (264.6 pounds). The front suspension features a Ø 41 mm telescopic upside-down fork with 240 mm of travel, while the rear boasts a hydraulic monoshock with a progressive link system, ensuring superior handling and stability on rough terrain. With powerful braking performance from the 300 mm front disc and 220 mm rear disc, riders can confidently navigate any corner or obstacle. Plus, the electric starter adds convenience, making it easy to get back on the bike after short stops. **
Pros
- Lightweight and Agile: Weighing just 120 kg, the SX 125 is incredibly nimble, making it perfect for tight corners and quick maneuvers.
- Performance-Oriented Engine: The single-cylinder engine delivers exciting power and responsiveness, ideal for both racing and recreational riding.
- Advanced Suspension System: The sophisticated suspension setup ensures excellent handling and comfort over various terrains.
Cons
- Limited Fuel Capacity: With a fuel tank capacity of 7.50 litres (1.98 gallons), longer rides may require more frequent stops for refueling.
- Higher Seat Height: At 880 mm (34.6 inches), the seat height may be a challenge for shorter riders, affecting accessibility.
- Targeted Audience: As a super motard, it may not be as versatile for street riding compared to dual-sport bikes, limiting its appeal for casual riders.
Technical details
Source specification data
- Make
- Aprilia
- Model
- SX 125
- Category
- Super motard
- Starter
- Electric
- Color Options
- Black/grey/red
- Power
- 15.00 HP (10.9 kW)) @ 10500 RPM
- Clutch
- Multi-plate in oil bath.
- Torque
- 10.90 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 8250 RPM
- Ignition
- Electronic with CDI capacity discharge
- Driveline
- Primary
- drive:
- Gearbox
- : 63/19 (3.31).
- Final
- drive:
- Chain
- : 17/40 (2.35).
- Fuel System
- Injection
- .
- G
- ø 32mm
- Bore X Stroke
- 58.0 x 47.0 mm (2.3 x 1.9 inches)
- Compression
- 12.5:1
- Displacement
- 124.80 ccm (7.62 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, four-stroke
- Emission Details
- Euro 4
- Lubrication System
- Wet sump
- Valves Per Cylinder
- 4
- Transmission Type Final Drive
- Chain
- Seat Height
- 880 mm (34.6 inches) If adjustable, lowest setting.
- Fuel Capacity
- 7.50 litres (1.98 gallons)
- Weight Incl Oil Gas Etc
- 120.0 kg (264.6 pounds)
- Wheels
- Aluminium spoked wheel.
- Rear Tyre
- 130/70-17
- Frame Type
- Aluminium perimeter
- Front Tyre
- 100/80-17
- Rear Brakes
- Single disc. Floating calliper
- Front Brakes
- Single disc. Floating calliper
- Rear Suspension
- Hydraulic monoshock absorber with progressive link system.
- Front Suspension
- Ø 41 mm telescopic upside down fork
- Rear Wheel Travel
- 220 mm (8.7 inches)
- Front Wheel Travel
- 240 mm (9.4 inches)
- Rear Brakes Diameter
- 220 mm (8.7 inches)
- Front Brakes Diameter
- 300 mm (11.8 inches)