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The Progressive Suspension 412 Series Shock is engineered specifically for Harley FLH models, offering a reliable upgrade to enhance your motorcycle's suspension performance. Designed with simplicity and durability in mind, these shocks provide an excellent balance of ride comfort and handling, making them a cost-effective improvement for your bike. The 412 series features a five-position cam-style spring preload adjuster, allowing riders to easily fine-tune the suspension settings for various loads and riding conditions. Whether you're cruising or tackling rougher terrain, this adjuster helps optimize your ride quality without the need for additional tools or complex adjustments.
The shocks come in multiple styling options, including full show-chrome or black covers, as well as chrome or black springs and end caps, enabling you to customize the look of your motorcycle to match your aesthetic preferences. Made in the USA, these shocks are measured from the center-of-eyelet to center-of-eyelet, ensuring proper fitment for Harley models from 1986 to 2015. When installing on '86-'15 XL models, some modifications or spacers for the chain or belt guard may be necessary to achieve proper clearance. It is also important to note that slightly longer shocks can subtly alter the head angle, resulting in quicker steering, while shorter shocks may slow steering response.
Heavy-duty applications are recommended if your bike is operated near or at the maximum load rating most of the time, typically over 50%. Before purchasing shocks that differ from OEM length, confirm that your wheel travel can accommodate these changes without causing clearance issues, such as contact between the swingarm, axle, exhaust, chain or belt guard, or tire. This ensures optimal performance and safety while customizing your Harley with the PROGRESSIVE SUSPENSION 412 Series Shock, a durable and versatile upgrade for a smoother, more controlled ride.
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