KTM 125 SX motorcycle is now becoming more popular with the youngsters in India and Sri Lanka. IUt comes with compact chassis and the lowest weight out there is teamed up with a high performance 125cc 2-stroke engine. Youngsters like to carry their love in the elevated back seat through the streets. While the hill climbers are taking thier challenge with their endurance engine motorbike.
The engine is the most powerful and most competitive engine in its class. KTM is keeping 2-stroke technology at the forefront of development of racing breeds. It provides power-to-weight ratio, low costs and simplicity. This 125cc ripper has been developed with the latest KTM engineering know-how and the most advanced technology available.
KTM 125 SX motorbike Highlights.
WP AER 48 front fork with a sophisticated air spring design and separate damping for easy adjustment to any track condition, rider weight or skill level. The fork is now 3.1 pounds lighter than the 4CS unit it replaces.
Rear suspension settings and softer rear spring are perfectly matched to the WP AER 48 front fork.
For fuel 38mm Mikuni TX carburetor for smoother and more controllable power delivery. It is also less sensitive to altitude and temperature changes.
Special throttle assembly with easy free play adjustment similar to the 4 -strokes featuring exchangeable throttle cams for different opening characteristics of the throttle.
Top triple clamp supports the new flex characteristic of the AER 48 fork for better action and reduced friction.
Perfect handlebar clamps feature a separated lower clamp and bridge-type upper clamp for more torsional stiffness.
Rear brake pedal 10mm longer and less aggressive brake pads provide better modulation and control.
Lightweight Chromoly steel frame provides high torsional rigidity with less longitudinal stiffness resulting in excellent handling and energy absorption.
KTM’s “No Dirt” footpeg design keeps the pegs pivot from becoming clogged, ensuring the footpeg is always in the correct position.
ODI grips that feature a lock-on design for the left grip and a vulcanized grip on the throttle side.
Super lightweight Galfer Wave rotors, CNC machined hubs, high-end Excel rims and Dunlop GEOMAX MX3S tires.
Airbox and filter design provides maximum performance with fast “no tools” air filter changes.
125 SX engine is compact and light while producing an impressive power output for class dominance
New “No Dirt” shift lever prevents dirt from fouling the lever joint to ensure proper shifting in any condition.
KTM 125 SX Technical details.
Frame design 25CrMo4 steel central-tube frame
Front suspension WP-USD, AER 48, Ø 48 mm
Rear suspension WP shock absorber with linkage
Suspension travel (front) 310 mm
Suspension travel (rear) 300 mm
Front brake Disc brake
Rear brake Disc brake
Front brake disc diameter 260 mm
Rear brake disc diameter 220 mm
Chain 5/8 x 1/4″
Steering head angle 63.9 °
Wheelbase 1485 ± 10 mm
Ground clearance 375 mm
Seat height 960 mm
Tank capacity (approx.) 7 l
Weight READY TO RACE (without fuel) 87.2 kg
Design 1-cylinder, 2-stroke engine
Displacement 124.8 cm³
Bore 54 mm
Stroke 54.5 mm
Primary drive 23:73
Secondary gear ratio 13:50
Clutch wet multi-disc clutch, Brembo hydraulics