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Upgrade your YZ125 or X model with the ATHENA P400485100030 cylinder kit designed for exceptional performance and durability. This kit features an aluminum cylinder with a nickel carbide coating that provides superior resistance to wear and corrosion, ensuring long-lasting operation under demanding conditions. The aluminum cylinder head includes a removable bronze dome, allowing for precise tuning and maintenance. The kit's high-performance, hard anodized power valves are specially engineered for optimal airflow and combustion efficiency, although they are not compatible with OEM parts. Included in the kit is an Athena top end gasket set, complete with seals and hardware essential for a secure and reliable seal during engine operation. The piston kit comprises a lightweight cast flat top piston, rings, clips, and a pin, all designed to deliver maximum power output while reducing weight for enhanced throttle response and acceleration. This assembly is ideal for riders seeking to boost their motorcycle’s performance, whether for racing or recreational riding. Built with quality materials and precision engineering, the ATHENA cylinder kit ensures a seamless upgrade to your engine, providing increased power, improved reliability, and extended lifespan. Proper installation and maintenance will allow you to enjoy enhanced engine performance for many miles to come.
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