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The Progressive Suspension 412 Series Shock (Part Number: 412-4005B) is engineered specifically for Harley-Davidson models, offering a simple yet durable upgrade to enhance your motorcycle's suspension performance. Designed with a five-position cam-style spring preload adjuster, this shock allows riders to easily customize their ride for optimal comfort and handling. Its versatile design makes it a cost-effective solution for riders seeking improved ride quality without compromising on reliability.
Constructed in the USA, the 412 Series Shock features a sleek black finish that complements a range of Harley models. It is available in multiple style options, including full show-chrome or black covers, as well as chrome or black springs and end caps to match your motorcycle’s aesthetic. The shock's center-to-center measurement ensures compatibility across various applications, and it is suitable for use on most Harley models from 1986 to 2015. When installing on certain models, such as the 1986-2015 XL series, modifications to the chain or belt guard may be necessary for proper clearance. The shock's length can influence steering characteristics, with slightly longer shocks providing quicker steering, and shorter shocks offering slightly slower steering response.
Heavy-duty applications are recommended for bikes operated near or at their maximum load capacity over 50% of the time, ensuring longevity and performance under demanding conditions. Before installing shocks that differ from OEM length, verify that wheel travel and clearance issues, including swingarm, axle, exhaust, chain or belt guard, and tire contact, are properly addressed to prevent interference or damage. The Progressive Suspension 412 Series Shock is an excellent choice for riders seeking a reliable, adjustable, and visually appealing suspension upgrade that enhances ride comfort and handling on Harley-Davidson motorcycles.
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