Moturo piston kit piston set for KTM 50 SX Junior

Moturo piston kit racing piston for KTM SX 50, SX 50 LC and EXC 50 00-16

The Moturo piston kit for your KTM SX 50, SX 50 LC and EXC 50 (MY 00-16) — a wear part with a fixed replacement interval on two-stroke engines. Racing piston with steel ring and biconical piston pin, ready for installation.

The piston works in the cylinder as a central wear part of the two-stroke engine and transfers the combustion pressure to the connecting rod. The set includes a racing piston with a steel ring, a biconical piston pin, a needle bearing, and circlips. Designed for the KTM SX 50, SX 50 LC, and EXC 50 with a coated cylinder, model years 2000 to 2016. The steel ring absorbs thermal peaks, and the biconical pin ensures smooth movement in the connecting rod eye.

Replacement takes about two hours with a piston ring compressor, torque wrench, and hex key set for the cylinder head bolts.

Piston kit for the KTM SX 50, made by Moturo.

Performance · Material · Specs

• Racing piston with steel ring and biconical piston pin
• Needle bearing and circlips included
• Designed for KTM SX 50, SX 50 LC and EXC 50 with coated cylinder
• Model years 2000 to 2016 as specified by the manufacturer

Important notes – please read

Original equipment part design, no separate ABE (general operating permit) required. Wear part — check the bore size and connecting rod eye against the previous piston or the KTM SX 50 workshop manual before ordering.

Tools & time required

• Piston ring compressor
• Torque wrench
• Hex key set in common sizes
• Approximately two hours for an experienced mechanic

Scope of delivery

1 × piston, 1 × piston ring, 2 × circlips, 1 × piston pin, 1 × needle bearing. Not included: cylinder, cylinder head gasket, cylinder base gasket, tools.

Frequently asked questions

Does the piston fit every KTM SX 50 cylinder?
Designed for KTM SX 50, SX 50 LC and EXC 50 with a coated cylinder, model years 2000 to 2016. Compare the bore size with the previous piston before ordering.

What torque settings apply to the cylinder head?
Tightening values according to the KTM SX 50 workshop manual.

Do I need new gaskets for installation?
Yes, the cylinder base gasket and cylinder head gasket are part of the replacement process, but they are not included in the delivery.