Tm Racing EN 250 FI [2013-2019] - forged pistons

PROX forged pistons for Tm Racing EN 250 FI

The PROX forged piston is designed as a replacement solution in equivalent original equipment quality for the Tm Racing EN 250 FI. Its forged aluminum design combines the specified piston dimensions with a design for the 2T engine. The piston has a diameter of 66.34 mm and standard piston compression.

Function and execution

The patented surface treatment helps reduce friction in the cylinder. The curved piston has 2 lubrication holes on the exhaust skirt. It is made from a special alloy using a manufacturing process used by most manufacturers. As a result, the piston is designed for a balance between performance and reliability.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Diameter Ø: 66.34 mm
• Piston compression: standard
• Letter oversize: A
• Oversize: STD
• Stroke: 2T
• Specificity: Domed piston / 2 lubrication holes on the exhaust skirt

Vehicle assignment

Suitable for the Tm Racing EN 250 FI, built between 2013 and 2019.

Selection guide

Before ordering, the specified diameter of 66.34 mm, the standard piston compression and the A and STD markings should be compared with the existing engine concept. In this way, the design can be selected specifically for the intended replacement.