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The S&S CYCLE 900-4065A roller rocker arms are engineered for high-performance applications on Evolution Big Twin, Twin Cam, XL, XR1200, and Buell motorcycles. Crafted from 8620 steel, these rocker arms are heat-treated and shot-peened to enhance strength and durability, ensuring reliable operation under demanding conditions. Featuring 3/4-inch long bushings, they provide increased surface contact and improved load distribution compared to standard 1/2-inch bushings, contributing to longer component life and smoother performance. The modified lubrication system with unrestricted roller oiling ensures consistent lubrication, reducing wear and maintaining optimal function during extended riding sessions. This set includes two front and two rear rocker arms, making it suitable for complete rocker arm upgrades or replacements. Made in the USA, these components are designed to meet high standards of quality and craftsmanship. For proper installation, it is recommended to use these rocker arms with adjustable pushrods, which are sold separately. Additionally, installing new rocker shafts is advised when fitting these roller rocker arms to ensure proper alignment and secure fitment, also available separately. With their robust construction and precision engineering, the S&S CYCLE roller rocker arms deliver enhanced performance, longevity, and smooth operation for your motorcycle’s valvetrain system.
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