KTM 250 EXC F [2014-2022] - Forged pistons

PROX forged pistons for KTM 250 EXC F from 2014 to 2022

The PROX forged piston is designed as a replacement piston for the KTM 250 EXC F in the entire model year range 2014 to 2022. Its design supports the targeted selection of a suitable piston based on the specified technical data and the intended vehicle assignment.

Execution and function

The piston is made of aluminum and is forged. The standard compression and the compression ratio of 14.4:1 correspond to the stated product specifications. The flat crown with raised top and 4 valve pockets is specified as a specific piston shape.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Diameter Ø: 77.95 mm
• Piston compression: standard
• Compression ratio: 14.4:1
• Letter oversize: A
• Oversize: STD
• 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 in 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 and 2022. Both the motorcycle model and year of manufacture as well as the dimensions and specifications listed are decisive for the selection.

Piston kit

The PROX piston kit includes piston rings, piston pins and circlips. This means that the components mentioned for the kit are included together.