Tm Racing MX 250 [1999-2020] - forged pistons

PROX forged pistons for TM Racing MX 250

The PROX forged piston is intended for the TM Racing MX 250 built between 1999 and 2020. It is suitable for replacement with equivalent original equipment manufacturer quality and combines a forged aluminum design with a precisely defined piston size of 66.35 mm.

Function and execution

It is made from a special aluminum alloy using a manufacturing process that is also used by most manufacturers. A patented surface treatment reduces friction in the cylinder. This supports the piston to run with less friction and takes into account the requirements for a balanced relationship between performance and reliability.

• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 66.35 mm
• Letter oversize: B
• Oversize: +0.01
• Stroke: 2T
• Specificity: Domed piston / 2 lubrication holes on the exhaust skirt

Vehicle assignment

The piston is assigned to the TM Racing MX 250 for the entire model year range 1999 to 2020. The vehicle name and year of manufacture should be compared with the existing engine before ordering.

Technical note

With the diameter Ø 66.35 mm, the oversize letter B and the version +0.01, this PROX piston is designed for targeted selection within the specified specification. The curved piston shape and the 2 lubrication holes on the exhaust skirt are design features of this version.