KTM 250 SX [1996-1999] - Forged pistons

PROX forged pistons for KTM 250 SX 1996-1999

The PROX forged piston is designed for replacement on the engine of the KTM 250 SX in the entire model year range from 1996 to 1999. Its aluminum design and forged piston production combine a special alloy with a manufacturing process used by most manufacturers.

Function and execution

The patented surface treatment helps reduce friction in the cylinder. The piston is designed with standard compression and has a curved piston shape with a lamella recess. This makes it suitable as a replacement component with equivalent original equipment quality.

Technical data

• Brand: PROX
• Piston Type: Forged
• Material: aluminum
• Diameter: Ø67.45mm
• Piston compression: standard
• Letter oversize: B
• Oversize: +0.01
• Stroke: 2T
• Specificity: Domed piston/lamella recess

Vehicle assignment

The forged piston fits the KTM 250 SX built in 1996, 1997, 1998 and 1999. The diameter Ø67.45 mm, the oversize +0.01 and the code letter B should be selected based on the requirements of the respective engine.

Factual note

To put together the appropriate components, piston rings, piston pins and circlips are part of the intended piston design. The components are tailored to use in the 2T engine.