Progressive Suspension 412 Series Shock - 13.5 Inch Heavy Duty Chrome for Harley FLH Models

The Progressive Suspension 412 Series Shock (Part Number: 412-4078C) is engineered specifically for Harley FLH models, offering a durable and straightforward upgrade to enhance your motorcycle's suspension performance. Designed with simplicity in mind, these shocks feature a robust construction that provides a cost-effective solution for riders seeking improved ride quality and handling. The chrome finish adds a sleek aesthetic, making it an attractive addition to your motorcycle while delivering reliable performance.

Equipped with a five-position cam-style spring preload adjuster, this shock allows you to easily customize the ride to your preference by adjusting the preload settings. This feature ensures optimal comfort and handling across various riding conditions. The shocks are manufactured in the USA, ensuring quality craftsmanship and adherence to high manufacturing standards. All measurements are taken from center-of-eyelet to center-of-eyelet, providing precise fitment for compatible Harley models.

These shocks are suitable for heavy-duty applications, particularly for bikes operated near or at their maximum load capacity over more than half of the riding time. When installing shocks that differ from the OEM length, riders should verify that wheel travel can be adjusted without causing clearance issues such as contact with the exhaust, chain or belt guard, or tire interference. Slight modifications, like adjusting or spacing the chain or belt guard, may be necessary for proper fitment on 1986-2015 XL models. Changes in shock length can also subtly influence steering characteristics, with longer shocks providing quicker steering and shorter shocks offering slightly slower handling. Multiple style options are available, including full show-chrome or black covers, as well as chrome or black springs and end caps, allowing you to customize the appearance to match your bike’s style.

Overall, the Progressive Suspension 412 Series Shock is a reliable, high-quality upgrade that enhances the ride experience on Harley FLH models, combining durability with easy adjustability for a tailored riding experience.

Features:

• Designed specifically for Harley FLH models for optimal fit and performance

• Five-position cam-style spring preload adjuster for easy customization

• Heavy-duty construction suitable for near-maximum load conditions

• Made in the USA with high-quality craftsmanship

• Chrome finish enhances style and durability

• Center-to-center eyelet measurement ensures precise installation

• Multiple style options available including chrome or black covers and springs

• Adjustable length may influence steering for personalized handling

• Compatibility considerations for 1986-2015 XL models, including potential modifications

• Suitable for street and highway use, with some shocks approved for road use