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The ATHENA P400210100017 Cylinder Kit is engineered for high-performance ATV applications, specifically designed for the TRX450R and ER models. This kit features an aluminum cylinder with a durable nickel-carbide coating, providing excellent wear resistance and thermal stability for demanding riding conditions. The larger water jackets incorporated into the design improve cooling efficiency, helping to maintain optimal engine temperature during intense use. The kit includes a forged piston coated with molybdenum, which offers enhanced durability and reduced friction, ensuring reliable power delivery and longevity. Please note that this kit requires special high-performance, hard anodized power valves; OEM valves are not compatible with this setup. The cylinder head is not included, allowing for customization based on your specific engine build and performance goals.
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