KTM 125 SX [2001-2027] - Race Evolution cast pistons

VERTEX Race Evolution cast piston for the KTM 125 SX

The VERTEX Race Evolution cast piston is designed for 2-stroke off-road and racing use. The design combines a defined piston geometry with a friction-optimized surface and is suitable as a precisely selected component for the KTM 125 SX in the 2001-2027 model year range.

Function and execution

The piston is made of aluminum and is designed as a cast piston. A reduced top edge supports the construction, which is tailored to racing use. The piston has a nitrided steel ring and a special MoS2 coating. This surface solution is designed for smooth sliding between the piston and cylinder.

Technical data

• Material: aluminum
• Piston Type: Cast
• Piston compression: standard
• Diameter Ø: 53.96 mm
• Letter oversize: C
• Oversize: +0.02
• Bore diameter: 54.00 mm
• Rings Quantity: 1
• Stroke: 2T

Vehicle assignment

The VERTEX Race Evolution cast piston is designed for the KTM 125 SX, built between 2001 and 2027. The selection depends on the specified piston diameter, the oversize +0.02 and the marking C.

Factual advice on selection

Before ordering, the existing cylinder bore and the required piston size should be compared with the technical specifications of the engine. The standard compression and the single ring design must be taken into account when selecting.