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The Progressive Suspension 412 Series Shock (Part Number: 412-4046B) is designed specifically for Harley-Davidson FXD models, offering an effective upgrade to enhance your motorcycle's ride quality and handling. These shocks feature a simple yet durable design that provides a cost-efficient improvement to your suspension system, ensuring smoother rides across various terrains. The 412 Series is suitable for both standard and heavy-duty applications, making it an ideal choice for riders who frequently operate at or near the maximum load capacity of their bikes. Constructed in the USA, these shocks are built to last and are available in a sleek black finish that complements Harley models' aesthetic appeal.
Equipped with a five-position cam-style spring load preload adjuster, these shocks allow riders to easily customize their ride stiffness and height for optimal comfort and handling. The adjustable preload feature ensures compatibility with a variety of riding styles and loads, enabling precise tuning for a personalized riding experience. It is important to note that the shocks are measured from center-of-eyelet to center-of-eyelet, and when installing on '86-'15 XL models, some modifications or spacers may be required for proper clearance, especially around the chain or belt guard. Additionally, choosing a shock slightly longer or shorter than the stock length can subtly alter the head angle, influencing steering responsiveness—longer shocks offer quicker steering, while shorter shocks provide a slightly slower turn-in.
These shocks are available in multiple styles, including full show-chrome or black covers, and feature either chrome or black springs and end caps, allowing customization to match your bike's look. Many models listed are approved for road use, but it is recommended to verify the latest certification before installation. Proper consideration of wheel travel and clearance issues is essential when selecting shocks that differ from OEM length to avoid contact with exhaust systems, swingarm, axle, or tires. Whether you're upgrading for better comfort, handling, or load capacity, the Progressive Suspension 412 Series shocks provide a reliable, performance-oriented solution for Harley FXD owners seeking quality and customization.
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