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The Progressive Suspension 412 Series Shock, model 412-4007B, offers a reliable upgrade for Harley-Davidson motorcycles, specifically designed to enhance suspension performance and rider comfort. With a length of 12.5 inches, this shock absorber provides a balanced ride quality suitable for a variety of riding conditions. Crafted with durability in mind, it features a simple yet robust design that makes it a cost-effective choice for riders seeking improved handling without extensive modifications.
Constructed with a five-position cam-style spring preload adjuster, the 412 Series allows riders to easily customize their suspension settings to match their preferred riding style or load requirements. This feature ensures optimal shock performance whether you're cruising on smooth highways or tackling rough terrain. The shock is available with various style options, including full show-chrome or black covers, and either chrome or black springs and end caps, allowing riders to match their bike’s aesthetic.
Manufactured in the USA, these shocks are measured from center-of-eyelet to center-of-eyelet, ensuring compatibility with a wide range of Harley models. When installing on '86-'15 XL models, modifications to the chain or belt guard may be necessary to ensure proper clearance and prevent contact with other components. Slight variations in length—either longer or shorter than stock—can influence steering characteristics, with longer shocks providing quicker steering and shorter shocks offering slower handling. Heavy-duty applications are recommended for bikes frequently operated at or near maximum load ratings, enhancing durability under demanding conditions. Before installation, verify that your wheel travel can accommodate shocks of different lengths without clearance issues, such as contact between the swingarm, axle, exhaust, or tires. This ensures safe and effective performance tailored to your riding needs.
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