ProX forged piston set, designed to combine stability and performance. The piston designs are generally similar to OEM/standard layouts but have been adapted to improve performance whenever possible.

• Material type: Cast aluminum with 18% silicon content.
• Features: Reduced thermal expansion thanks to the addition of silicon.
• Compatibility: Manufactured for cast iron cylinders and Nikasil.
• Available sizes: Increased sizes A/B/C/D with 0.01 millimeter step in diameter.