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The Progressive Suspension 412 Series Shock offers a reliable and cost-effective upgrade for Harley-Davidson FL and FX models, enhancing overall ride quality and handling. Designed with durability in mind, this shock features a simple yet robust construction that ensures long-lasting performance under various riding conditions. Its black finish provides a sleek look that complements your motorcycle's aesthetics while offering corrosion resistance and low maintenance. The shock is engineered to improve suspension response, providing a smoother experience on both city streets and open highways. Its standard 12-inch length is suitable for a wide range of Harley models, making it a versatile choice for riders seeking to improve their motorcycle's ride without extensive modifications. The 412 Series shock includes a five-position cam-style spring preload adjuster, allowing riders to easily customize the ride height and firmness to suit personal preferences and load conditions. This adjustability ensures optimal handling whether you're cruising solo or carrying additional gear. Made in the USA, these shocks are designed to meet high-quality standards and are approved for street use, although it is advisable to verify current certification for your specific application. When installing on '86-'15 XL models, some modifications such as spacers or adjustments to the chain or belt guard may be necessary to ensure proper clearance. Slight variations in shock length, whether longer or shorter than stock, can subtly influence steering characteristics—longer shocks may quicken steering, while shorter shocks can slow it down. Heavy-duty applications are recommended for bikes operated near maximum load ratings over 50% of the time, ensuring durability and safety under demanding conditions. Before selecting shocks different from OEM specifications, confirm that your wheel travel remains unobstructed to prevent contact issues with the swingarm, exhaust, or tires, maintaining optimal performance and safety.
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