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The Progressive Suspension 412 Series Shock is designed specifically for Harley-Davidson models, offering a reliable and cost-effective upgrade to enhance your motorcycle's suspension performance. Its simple yet durable design ensures long-lasting use, making it an ideal choice for riders seeking improved ride quality and handling. The shock features a five-position cam-style spring preload adjuster, allowing you to easily dial in your preferred ride stiffness for varying loads and riding conditions. This adjustability provides a customizable experience, whether you're riding solo or with a passenger and gear.
Constructed in the USA, the 412 Series Shock is available in multiple style options, including full show-chrome or black covers, and either chrome or black springs and end caps, enabling you to match your bike's aesthetic. All shocks are measured from center of eyelet to center of eyelet, ensuring proper fit and compatibility. Some models are approved for road use; please consult the latest certification to confirm compliance. When installing shocks on '86-'15 XL models, modifications or spacers may be necessary to ensure proper clearance around the chain or belt guard. Slight variations in length can influence steering characteristics, with longer shocks providing slightly quicker steering and shorter shocks offering slower steering responses.
Heavy duty applications are recommended for bikes operated at or near maximum load ratings over 50% of the time, providing additional durability and support. Before replacing OEM shocks with different lengths, verify that your wheel travel and clearance are sufficient to avoid contact issues with the swingarm, exhaust, or tires. The 12.6-inch length offers a balanced ride height and performance suited for various riding styles, enhancing stability and comfort on the road.
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