KTM 125 XC W [2025-2027] - Race Evolution cast pistons

VERTEX Race Evolution cast piston for the KTM 125 XC W

The VERTEX Race Evolution cast piston is designed for 2-stroke use in the KTM 125 XC W built between 2025 and 2027. Its aluminum design and standard piston compression are based on a clearly defined use in the upper engine area.

Function and execution

The cast piston features a reduced piston top and a specifically designed area with MoS2 coating. This design supports the smooth movement of the piston and cylinder. A nitrided steel ring completes the construction. The piston is intended for racing applications.

Technical data

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

Vehicle assignment

The VERTEX Race Evolution cast piston fits the KTM 125

Developed for racing

The Race Evolution version was developed for use in off-road racing and is chosen by factory MX teams. The coated areas and the nitrided steel ring are tailored to the requirements of a precise 2-stroke piston design.