Progressive Suspension 412 Series Shock for Harley FLH - 13.5 inch Heavy Duty Black

The Progressive Suspension 412 Series Shock with part number 412-4078B is designed specifically for Harley models, offering an affordable upgrade to your motorcycle's suspension system. These shocks are constructed with durability in mind, featuring a simple yet robust design that enhances ride quality and stability. Whether you're looking to improve handling or increase comfort on long rides, the 412 Series provides an effective solution. The black finish lends a sleek appearance, complementing various motorcycle styles and customizations. Made in the USA, these shocks are built to meet high standards of quality and performance. They are compatible with a range of Harley models, especially the FLH series, and are measured from center-of-eyelet to center-of-eyelet for precise fitment. The shocks include a five-position cam-style spring load preload adjuster, enabling riders to easily dial in their preferred ride height and firmness. This feature is particularly useful for customizing the suspension to suit different loads or riding conditions. Some or all shocks listed are approved for road use, but users should consult the latest certification to confirm compliance. Installing these shocks on '86-'15 XL models may require modifications or spacing of the chain or belt guard for proper clearance. Slightly longer shocks than stock can alter the head angle, resulting in quicker steering, while shorter shocks can produce a slower steering response. Heavy-duty applications are recommended for motorcycles operated near or at maximum load ratings over 50% of the time. Before installation, verify that wheel travel and clearance issues such as swingarm or exhaust contact are addressed, especially if selecting shocks different from OEM length. Proper installation ensures optimal performance and safety, making the Progressive Suspension 412 Series Shock a reliable upgrade for serious riders seeking enhanced suspension performance.

Features:

• Designed specifically for Harley models, ensuring perfect fit and compatibility

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

• Heavy-duty construction for demanding riding conditions

• Black finish offers a sleek, low-maintenance appearance

• Made in the USA with high-quality materials and craftsmanship

• Suitable for model years '86-'15 XL, with potential modifications for proper clearance

• Provides a slight change in steering response depending on shock length compared to stock

• Ideal for riders operating near maximum load ratings, ensuring durability under heavy use