Tm Racing MX 250 FI ES [2025-2026] - cast pistons

VERTEX cast pistons for the Tm Racing MX 250 FI ES 2025-2026

The VERTEX cast piston is intended as an engine component for the Tm Racing MX 250 FI ES in the full 2025-2026 model year range. Its design is tailored to the specified dimensions and the standard piston compression of this vehicle.

Technical features

• Material: aluminum
• Piston type: cast
• Piston compression: standard
• Piston diameter: 66.34 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 66.40 mm
• Number of piston rings: 2
• Stroke: 2T

Vehicle assignment

The piston fits the Tm Racing MX 250 FI ES from 2025-2026. The assignment refers to this model and this year of manufacture.

Execution of VERTEX

VERTEX pistons are recognized for their performance and mileage. The supplier, which specializes in engine components for off-road machines, is used as an original equipment manufacturer by numerous motorcycle manufacturers. The cast aluminum design with standard piston compression provides a clearly defined technical configuration for the specified engine component.

The piston diameter of 66.34 mm, the bore diameter of 66.40 mm, the marking B and the oversize +0.01 are particularly important for the selection. The version has 2 piston rings and is designed for the specified 2T stroke.