KTM 250 SX F [2016-2022] - Forged pistons

PROX forged pistons for KTM 250 SX F 2016-2022

The PROX forged piston is designed to replace the original piston of the KTM 250 SX F in the full year range from 2016 to 2022. Manufacturing on modern CNC systems supports precise execution. The piston is made of aluminum and has a forged design.

Design and technical data

• Piston Type: Forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 77.98 mm
• Letter oversize: C
• Oversize: +0.02
• Compression ratio: 14.4:1
• Stroke: 4T
• Specificity: Flat crown with raised top and 4 valve pockets

Piston set for engine overhaul

The ProX piston alloy is designed for low expansion and reduced friction. This makes the piston suitable as a solution for replacing the original piston. The design with a flat crown, raised top and four valve pockets should be taken into account when selecting based on the existing engine configuration.

The piston set includes piston rings, piston pins and circlips. The set therefore contains the components intended for piston installation. The combination of diameter 77.98 mm, oversize letter C and oversize +0.02 should be compared with the existing cylinder before ordering.

Vehicle assignment

The PROX forged piston fits the KTM 250 SX F, built between 2016 and 2022.