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125 SX 2020

Engine & Exhaust

KTM 2-strokes have been tearing up MX tracks for decades and are undoubtedly the fastest on the track today. Thanks to years of ongoing development, these engines are the benchmark in performance and technology, with the perfect combination of power, weight and control. For 2020, small, but important refinements have been made, resulting in improved power delivery and reliability and through its melodic high-RPM screams, KTM125 SX continues to deliver thrilling high-performance harmonics.

Engine

Power progression

Cylinder

Crankcases and engine covers

Transmission

Engine

Factory spark plug

POWERPART
150 Factory kit

POWERPART
Factory piston

POWERPART

Cooling

Highly effective cooling

Cooling

Radiator protection

POWERPART
Radiator fan

POWERPART

Exhaust

For sound of power

Exhaust

Heat protection

POWERPART
FMF Powercore 2 silencer

POWERPART
FMF Powercore 2.1 silencer

POWERPART

CNC-parts

Factory control cover

POWERPART
Outer clutch cover

POWERPART
Oil plug

POWERPART

The illustrated vehicles may vary in selected details from the production models and some illustrations feature optional equipment available at additional cost. All information concerning the scope of supply, appearance, services, dimensions and weights is non-binding and specified with the proviso that mistakes, printing, setting and typing errors may occur; such information is subject to change without notice. No rights may be derived from incorrect statements.