KTM 250 EXC [1996-1999] - Forged pistons

PROX forged pistons for KTM 250 EXC 1996-1999

The PROX forged piston is designed as a replacement piston with equivalent original equipment manufacturer quality. Its aluminum production and forged design combine a precise piston concept with the standard compression intended for use. The patented surface treatment helps reduce friction in the cylinder.

Function and execution

The piston has a curved piston shape with a lamella recess. This version is specifically tailored to the specified engine configuration. As a 2T piston, it is intended for corresponding two-stroke use and is suitable for replacing an equivalent piston.

Technical data

• Brand: PROX
• Piston type: forged
• Material: aluminum
• Piston compression: standard
• Diameter Ø: 67.45 mm
• Letter oversize: B
• Oversize: +0.01
• Stroke: 2T
• Specificity: domed piston/lamella recess

Vehicle assignment

The PROX forged piston is assigned to the KTM 250 EXC from the entire model year range 1996-1999. When selecting, the diameter of 67.45 mm, the marking B and the version with +0.01 oversize must be taken into account.

The combination of forged aluminum design, standard compression and friction-reducing surface treatment makes this piston an appropriate option for replacement within the specified vehicle classification.