2017 KTM 125 SX

KTM Press Release Below:

The engine of the 125 SX has been known to be the most powerful and most competitive engine of its class and it is clear two-strokes are going to have a successful future due at KTM thanks to outstanding power-to-weight ratio, a low operating cost and simplicity. The 125 SX’s engine has been developed with the latest KTM engineering know-how and the most advanced technology in the class. The result is that it produces better power all over the rev range while being more compact and significantly lighter than all others. A host of improvements such as the WP AER 48 fork, new handlebar clamps, new brake pedal and brake pads further elevate the READY TO RACE game of the 125 SX.

2017 125 SX Highlights

NEW 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.
NEW rear suspension settings and softer rear spring are perfectly matched to the WP AER 48 front fork.
NEW 38mm Mikuni TX carburetor for smoother and more controllable power delivery. It is also less sensitive to altitude and temperature changes.
NEW throttle assembly with easy free play adjustment similar to the 4 -strokes featuring exchangeable throttle cams for different opening characteristics of the throttle.
NEW top triple clamp supports the new flex characteristic of the AER 48 fork for better action and reduced friction.
NEW Handlebar clamps feature a separated lower clamp and bridge-type upper clamp for more torsional stiffness.
NEW 10mm longer rear brake pedal and less aggressive brake pads provide better modulation and control.
A 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.NEW 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.
The 125 SX engine is compact and light while producing an impressive power output for class dominance
“No Dirt” shift lever prevents dirt from fouling the lever joint to ensure proper shifting in any condition.