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Upgrade your YZ125 with the ATHENA P400485100017 cylinder kit, engineered for superior performance and durability in motocross applications. Crafted from high-quality aluminum and nickel carbide coated, this cylinder offers excellent heat resistance and wear protection, ensuring long-lasting engine operation. The design features larger water jackets that improve cooling efficiency, helping your engine maintain optimal operating temperatures during intense riding conditions. The kit includes a specially designed, high-performance, hard anodized power valve system, which enhances power delivery and throttle response, although it is incompatible with OEM power valves. An aluminum cylinder head with a removable bronze dome allows for a higher compression ratio and anti-detonation properties, optimizing power output and engine longevity in high-performance scenarios. The package also contains a Cast-Lite flat top piston kit that complements the cylinder's specifications, along with an Athena top-end gasket set containing all necessary seals and hardware for a secure, reliable installation. Installation is straightforward, requiring no matching components except where specified, making it an ideal upgrade for riders seeking increased horsepower and engine efficiency. Designed to fit seamlessly onto your existing engine, this kit delivers an immediate performance boost while maintaining engine integrity and reliability. Whether you're racing or recreational riding, the ATHENA P400485100017 kit provides a robust, high-quality solution for enhancing your YZ125's engine capabilities. The kit's components are engineered for precision fit and durability, ensuring consistent performance across multiple riding seasons. Trust ATHENA's reputation for quality and innovation in motorcycle engine components, and experience improved power, cooling, and overall engine performance with this comprehensive cylinder kit.
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