KTM 250 XC-W SIX Days [2026] - cast pistons

VERTEX cast piston for KTM 250 XC-W SIX Days 2026

The VERTEX cast piston is designed as a replacement part for the KTM 250 XC-W SIX Days from 2026. Its technical dimensions and the specified design support a targeted selection to match the specified engine configuration.

Execution and function

The piston is made of aluminum and is manufactured as a cast version. Piston compression is standard. With two piston rings and the design for 2T, the component is suitable for the corresponding two-stroke engine configuration.

Technical data

• Brand: VERTEX
• Piston Type: Cast
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 66.37 mm
• Letter oversize: D
• Oversize: +0.03
• Bore diameter: 66.40 mm
• Rings Quantity: 2
• Stroke: 2T

Vehicle assignment

The cast piston is assigned to the KTM 250 XC-W SIX Days, built in 2026. Selection should be based on the specified diameter of 66.37mm, oversize +0.03 and bore diameter of 66.40mm.

Selection note

Before ordering, check whether the values 66.37 mm, oversize D and +0.03 match the intended motor configuration. The technical design with standard compression and two piston rings is relevant for a clear assignment of the required piston specification.