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Upgrade ride quality and durability with the ZETA Aluminum Free Piston, engineered as a direct replacement for KYB AOS Twin Chamber fork pistons. Designed to outlast the fragile OE plastic piston, this kit delivers consistent performance and improved fork feel.
Perfect for riders seeking a simple, effective upgrade to extend fork life and refine suspension behavior. Replace your OE piston with ZETA Aluminum for dependable performance ride after ride.