
WK SX 125
Key specifications
Overview
### Introduction to the 2008 KTM SX 125 The 2008 KTM SX 125 stands as a testament to the brand's commitment to producing high-performance motocross machines that cater to both budding riders and seasoned competitors. Positioned in the cross-motocross category, the SX 125 is specifically designed for the thrilling world of dirt racing, where every second counts and agility is key. With its lightweight frame and powerful engine, this bike is an ideal entry point for younger riders or those transitioning from smaller engines, offering a perfect blend of power and maneuverability. ### Engine Performance and Riding Characteristics At the heart of the SX 125 lies a robust 124.80cc single-cylinder, two-stroke engine, which delivers an exhilarating 12.20 Nm of torque at 8000 RPM. This configuration not only provides ample acceleration but also ensures a responsive throttle, allowing riders to navigate through tight corners and challenging terrains with ease. The liquid cooling system enhances performance by maintaining optimal engine temperatures, while the Dell'Orto carburetor ensures precise fuel delivery for a smooth riding experience. The bike’s lightweight design—just 115 kg (253.5 pounds)—coupled with its nimble handling, creates an engaging ride that is both exhilarating and confidence-inspiring, whether you're tackling a motocross track or exploring off-road trails. ### Key Features and Technology The SX 125 boasts a high-strength steel frame, designed with a double beam structure that provides both stability and agility. The front suspension features 40mm upside-down forks with an impressive travel of 260mm, while the rear utilizes a hydraulic monoshock with a travel of 270mm, ensuring excellent shock absorption and ride comfort on rough terrain. The braking system is equally advanced, with a 260mm front disc and a 220mm rear disc that deliver powerful stopping power, enhancing safety and control. Additionally, the bike features a kick starter, ensuring reliability and simplicity in starting up before hitting the dirt. With a seat height of 870mm, it offers a comfortable riding position that suits a variety of rider sizes, making it versatile for different skill levels. ###
Pros
Cons
- Lightweight and Agile: Weighing only 115 kg, the SX 125 is easy to handle and maneuver, ideal for both beginners and experienced riders.
- Strong Performance: The two-stroke engine delivers quick acceleration and responsive power delivery, perfect for competitive racing scenarios.
- Advanced Suspension System: The high-quality suspension components provide superior shock absorption, enhancing stability and comfort on rugged terrains.
- Limited Fuel Capacity: With a fuel tank that holds just 10 liters (2.64 gallons), longer rides without refueling may be a concern.
- Kick Start Only: The absence of an electric starter could be a drawback for some riders, particularly in tricky situations.
- Two-Stroke Maintenance: Two-stroke engines typically require more frequent maintenance and tuning compared to their four-stroke counterparts.
Technical details
Source specification data
- Make
- Aprilia
- Model
- SX 125
- Category
- Cross-motocross
- Starter
- Kick
- Torque
- 12.20 Nm (1.2 kgf-m or 9.0 ft.lbs) @ 8000 RPM
- Ignition
- Electronics to capacitive discharge CDI
- Fuel System
- Carburettor
- .
- Dell
- carburetor and #146;
- T
- 28
- Compression
- 12.5:1
- Displacement
- 124.80 ccm (7.62 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, two-stroke
- Lubrication System
- Miscelazione separated with volumetric pump and variable capacity
- Transmission Type Final Drive
- Chain
- Dry Weight
- 115.0 kg (253.5 pounds)
- Seat Height
- 870 mm (34.3 inches) If adjustable, lowest setting.
- Fuel Capacity
- 10.00 litres (2.64 gallons)
- Overall Width
- 850 mm (33.5 inches)
- Overall Height
- 1,390 mm (54.7 inches)
- Overall Length
- 2,165 mm (85.2 inches)
- Reserve Fuel Capacity
- 1.30 litres (0.34 gallons)
- Rear Tyre
- 150/60-17
- Frame Type
- Chassis in steel to high resistenziale with double beam to attice and double crib with reggisella decomposable
- Front Tyre
- 110/70-17
- Rear Brakes
- Single disc. floating clamp to single pistoncino
- Front Brakes
- Single disc. floating clamp to double quantity pistoncino parallel
- Rear Suspension
- Oscillating Forcellone in steel, hydraulic monoshock-absorber with piggy-back, excursion rotates 270mm
- Front Suspension
- Teleidraulica staple to steles turned upside down from 40mm, excursion rotates 260mm
- Rear Wheel Travel
- 270 mm (10.6 inches)
- Front Wheel Travel
- 260 mm (10.2 inches)
- Rear Brakes Diameter
- 220 mm (8.7 inches)
- Front Brakes Diameter
- 260 mm (10.2 inches)