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

VERTEX Race Evolution cast piston for KTM 125 XC W

The VERTEX Race Evolution cast piston is intended for the 2-stroke engine of the KTM 125 XC W in the 2025-2027 model year range. Its design is aimed at off-road racing applications and combines a defined piston geometry with selected features for use in the engine.

Function and execution

The piston is made of aluminum and is designed as a cast piston. A reduced piston top and a special pocket profile support uniform movement in the cylinder. The MoS2 coating in the designated areas is designed to ensure smooth running between the piston and cylinder.

• Cast aluminum piston
• Piston compression: standard
• 1 nitrided steel ring
• MoS2 coating with specific pockets
• Designed for 2T engines and racing applications

Technical data

• Piston diameter Ø: 53.95 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 54.00 mm
• Rings Quantity: 1
• Stroke: 2T

Vehicle assignment

Suitable for KTM 125 XC W, built between 2025 and 2027. The dimensions and design specified are used to specifically select the piston for this vehicle.