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The S&S CYCLE Flywheel Assembly part number 320-0523 is engineered for high performance and durability in large displacement motorcycle engines. Crafted from high-grade 4140 steel, this 3-piece flywheel features an integral main shaft and a larger 1.671" crankpin, providing increased strength and stability during operation. Designed to fit directly into stock crankcases without the need for modifications, it offers a seamless upgrade for your existing engine setup. Made in the U.S.A., this flywheel assembly is a reliable choice for enthusiasts seeking quality and precision in their engine components. The assembly excludes the sprocket bearing race, making it compatible with Timken bearing conversions, which are sold separately, allowing for tailored installation options based on your specific requirements. This assembly is ideal for use with 120R and 124" motors, delivering enhanced performance and longevity. Whether you're restoring a vintage engine or upgrading for increased power output, this flywheel assembly provides a robust solution that meets professional standards and ensures optimal engine operation.
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