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The Progressive Suspension 412 Series Shock, part number 412-4081B, is designed specifically for Harley-Davidson motorcycles, offering a straightforward and durable upgrade to enhance your bike’s suspension system. Built with a focus on reliability and performance, this shock absorber features a simple yet robust design that makes it an excellent choice for riders seeking a cost-effective improvement. Its heavy-duty construction ensures it can handle demanding riding conditions, especially when operated near the maximum load capacity recommended by the manufacturer. Made in the USA, the 412 Series shock is engineered for durability and consistent performance across various riding environments.
Equipped with a five-position cam-style spring preload adjuster, this shock allows you to easily customize your ride to suit your preferences. Whether you need a slightly stiffer setup for aggressive riding or a softer setting for comfort on long journeys, the preload can be dialed in quickly and precisely. The shock's design includes options for full show-chrome or black covers, along with either chrome or black springs and end caps, giving you a customizable look to match your motorcycle’s style. All shocks are measured from center-of-eyelet to center-of-eyelet, ensuring proper fitment and compatibility with Harley models from 1986 through 2015.
When installing the 412 Series shocks on XL models, you may need to modify or space the chain or belt guard for proper clearance. Slight differences in shock length from stock can influence the head angle, potentially providing quicker or slower steering. It’s important to verify that your wheel travel and clearance remain within safe parameters before installing shocks that differ from the OEM length. This ensures that swingarm, axle, exhaust, and other components do not contact the tire or chain/belt guard during operation. Heavy-duty applications are recommended for bikes frequently operated at or near maximum load, providing added durability and support for demanding riding conditions.
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