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The ATHENA KX125 Cylinder Kit, part number P400250100001, is engineered for enhanced performance and durability in motorcycle engines. Featuring a nickel carbide-coated aluminum cylinder, this kit provides superior wear resistance and longevity. The design incorporates larger water jackets to improve cooling efficiency during high-demand riding conditions, helping to maintain optimal engine temperature and prevent overheating. The kit is specifically tailored for high-performance applications and includes a high-quality, hard anodized power valve assembly, which is designed for superior airflow control and power delivery, though it is incompatible with OEM valves. The aluminum cylinder head is equipped with a removable bronze dome, allowing for increased compression ratios and anti-detonation features, which improve engine response and reduce knocking under heavy loads. This advanced design enhances overall engine performance and reliability in demanding environments. The kit also includes a Cast-Lite flat top piston set, providing lightweight strength and efficient combustion, along with an Athena top-end gasket set that contains all necessary seals and hardware for a complete installation. This bolt-on assembly is straightforward to install, requiring no matching components except where specified, making it a convenient upgrade for enthusiasts and professional mechanics alike. Whether for racing or aggressive trail riding, this kit ensures a significant boost in power and efficiency while maintaining the durability needed for rigorous use.
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