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The Progressive Suspension 412 Series Shock is designed specifically for Harley FLH models, offering an affordable yet effective upgrade to your motorcycle's suspension. Featuring a durable and straightforward design, these shocks are built to enhance ride comfort and handling. The five-position cam style spring preload adjuster allows riders to easily customize their ride quality, ensuring optimal performance whether you're cruising or riding aggressively. These shocks are available in various styles, including full show-chrome or black covers, and come with either chrome or black springs and end caps to match your motorcycle's aesthetic. Made in the USA, the 412 series shocks are measured from center-of-eyelet to center-of-eyelet, ensuring compatibility and proper fitment on your bike. When installing on '86-'15 XL models, modifications such as spacers or adjustments to the chain or belt guard may be necessary to maintain proper clearance. A slightly longer shock than stock can subtly alter the head angle for quicker steering, while a shorter shock may result in slightly slower steering. Heavy duty applications are recommended for bikes frequently operated at or near maximum load capacity, typically over 50% of the time. Before installing shocks that differ from stock length, it's important to verify that your wheel travel can accommodate the change without causing contact issues with the swingarm, exhaust, chain/belt guard, or tires. These shocks are designed to improve handling, comfort, and stability, making them an excellent upgrade for Harley enthusiasts seeking durable, customizable suspension components.
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