
KTM 125 SX
Key specifications
Overview
Introducing the 2003 KTM 125 SX, a vibrant contender in the competitive world of cross-motocross motorcycles. Renowned for its agile handling and lightweight construction, the 125 SX is tailored for riders seeking a blend of performance and thrill on both track and trails. With its striking orange and black livery, the 125 SX not only stands out visually but also represents KTM's commitment to racing pedigree and innovation. This model is particularly appealing to entry-level motocross enthusiasts and seasoned riders looking for a nimble machine to hone their skills. At the heart of the KTM 125 SX lies a potent single-cylinder, two-stroke engine with a displacement of 124.80 ccm. This powerplant delivers exhilarating performance, revving up with a lively character that is typical of KTM's racing lineage. The engine’s bore and stroke of 45.0 x 40.8 mm ensure quick throttle response and impressive acceleration, making it a blast to ride. Coupled with a 5-speed gearbox and liquid cooling, the 125 SX excels in delivering smooth power delivery, whether you’re navigating tight corners or powering down straightaways. Riders can expect a thrilling experience that blends power with precision, allowing for effortless maneuvers on the track. The 2003 KTM 125 SX is equipped with features that enhance its performance and rider experience. The advanced suspension setup includes a front travel of 300 mm and rear travel of 335 mm, ensuring superior handling over bumps and obstacles. Stopping power is provided by robust single-disc brakes with a 260 mm front and 220 mm rear diameter, giving riders confidence in their braking capabilities. The chassis is designed with a ground clearance of 390 mm and a seat height of 925 mm, catering to a variety of rider sizes while maintaining an aggressive stance. With a fuel capacity of 7.50 litres, you can enjoy extended riding sessions without frequent refueling stops. **
Pros
- Lightweight design at 93.6 kg (206.4 pounds) enhances agility and maneuverability.
- Responsive and powerful two-stroke engine delivers an exhilarating riding experience.
- High-quality suspension components provide excellent handling and comfort on rough terrains.
Cons
- Two-stroke engines may require more frequent maintenance compared to four-stroke counterparts.
- Limited fuel capacity of 7.50 litres may necessitate more frequent stops on longer rides.
- Higher seat height at 925 mm might be challenging for shorter riders to manage comfortably.
Technical details
Source specification data
- Make
- KTM
- Model
- 125 SX
- Category
- Cross-motocross
- Gearbox
- 5-speed
- Fuel System
- Carburettor
- Bore X Stroke
- 45.0 x 40.8 mm (1.8 x 1.6 inches)
- Displacement
- 124.80 ccm (7.62 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, two-stroke
- Transmission Type Final Drive
- Chain
- Dry Weight
- 93.6 kg (206.4 pounds)
- Seat Height
- 925 mm (36.4 inches) If adjustable, lowest setting.
- Fuel Capacity
- 7.50 litres (1.98 gallons)
- Ground Clearance
- 390 mm (15.4 inches)
- Rear Tyre
- 100/90-19
- Front Tyre
- 80/100-21
- Rear Brakes
- Single disc
- Front Brakes
- Single disc
- Rear Wheel Travel
- 335 mm (13.2 inches)
- Front Wheel Travel
- 300 mm (11.8 inches)
- Rear Brakes Diameter
- 220 mm (8.7 inches)
- Front Brakes Diameter
- 260 mm (10.2 inches)