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The Progressive Suspension 412 Series Shock, designed specifically for Harley Davidson models, offers an easy upgrade to enhance your motorcycle's suspension performance. Featuring a simple yet durable construction, these shocks provide a cost-effective solution to improve ride quality and handling. The five-position cam-style spring preload adjuster allows riders to easily customize the suspension setup to match riding preferences and load conditions, ensuring optimal comfort and stability. Suitable for various Harley models, the shocks are approved for road use, with certification details available for reference.
Constructed in the USA, the 412 Series shocks come in multiple style options, including full show-chrome or black covers, as well as chrome or black springs and end caps, allowing you to customize the aesthetic of your motorcycle. All shocks are measured center-of-eyelet to center-of-eyelet, ensuring compatibility with your bike’s specifications. When installing on '86-'15 XL models, some modifications or spacing of the chain or belt guard may be necessary to ensure proper clearance and prevent contact issues. The shocks' length variations can subtly influence steering characteristics; slightly longer shocks may result in a quicker steering response, while slightly shorter shocks can produce a more relaxed, slower steering feel.
Heavy-duty applications are recommended for bikes often operated near the maximum load rating, typically over 50% of the time, providing additional durability under demanding conditions. Before selecting shocks that differ from the OEM length, it is important to verify that your wheel travel allows for modifications without causing clearance problems, such as contact between the swingarm, axle, exhaust, chain/belt guard, or tires. The PROGRESSIVE SUSPENSION 412 Series Shock is a reliable, customizable upgrade designed to enhance ride comfort, handling, and style for Harley Davidson enthusiasts.
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