KTM 250 EXC F [2014-2020] - Forged pistons

PROX forged pistons for KTM 250 EXC F 2014-2020

The PROX forged piston is designed for the KTM 250 EXC F from the years 2014 to 2020. Its special alloy reduces friction and thus supports engine reliability and performance.

Execution and function

The piston is made of aluminum and is forged. The flat crown with raised top and 4 valve pockets form the specific piston shape of this model. The standard compression is tailored to the corresponding engine design.

Technical data

• Material: aluminum
• Piston Type: Forged
• Piston compression: standard
• Diameter Ø: 77.97 mm
• Letter oversize: B
• Oversize: +0.01
• Rings Quantity: Set
• Stroke: 4T
• Specificity: Flat crown with raised top / 4 valve pockets

Vehicle assignment

The forged piston fits the KTM 250 EXC F, built between 2014 and 2020. The specified assignment supports the selection based on model and year of manufacture.

Factual note

When making the selection, the diameter of 77.97 mm, the oversize letter B and the oversize specification +0.01 must be taken into account in particular. The combination of forged aluminum design, standard compression and 4-valve pocket piston crown describes the technical design of the PROX piston.