Progressive Suspension 412 Series Shock - 13.5 Inch Heavy Duty Chrome for Harley-Davidson - Part Number 412-4021C

The Progressive Suspension 412 Series Shock, designed specifically for Harley-Davidson models, offers a reliable upgrade to enhance your motorcycle's suspension performance. Featuring a simple yet durable design, these shocks provide cost-effective improvements that contribute to a smoother ride and better handling. The 13.5-inch length makes them suitable for a variety of Harley models, ensuring compatibility and ease of installation. All shocks are measured center-of-eyelet to center-of-eyelet, allowing for precise fitment and performance assessment.
The shock includes a five-position cam-style spring load preload adjuster, enabling riders to easily dial in their desired ride stiffness for optimal comfort and control. Depending on your riding style and load requirements, you can fine-tune the suspension to achieve the perfect balance between ride quality and handling. Available in full show-chrome or black covers, with either chrome or black springs and end caps, these shocks can be customized to match your motorcycle’s aesthetic.
Made in the USA, the 412 Series shocks are approved for road use, providing confidence in their durability and safety. When installing on '86-'15 XL models, some modifications to the chain or belt guard may be necessary to ensure proper clearance. Riders should verify that wheel travel can be adjusted without causing interference with the swingarm, exhaust, or tires, especially when selecting shocks that deviate from OEM length. Slightly longer shocks can provide quicker steering by altering the head angle, while shorter shocks may result in slower steering characteristics. Heavy-duty applications are recommended for bikes frequently operated near or at maximum load capacity, ensuring longevity and performance under demanding conditions.
Overall, the Progressive Suspension 412 Series Shock offers a versatile, high-quality upgrade that enhances ride comfort, handling, and customization options for Harley-Davidson enthusiasts seeking reliable suspension performance.

Features:

• Designed specifically for Harley-Davidson models for optimal fit and performance

• 13.5-inch length suitable for a variety of Harley models

• Five-position cam-style spring preload adjuster allows easy customization of ride stiffness

• Available in chrome or black covers with matching springs and end caps for personalized style

• Made in the USA with quality craftsmanship and durability

• Approved for road use, ensuring safety and reliability

• Compatible with Harley models from 1986 to 2015, with some modifications required on certain models

• Heavy-duty applications recommended for bikes operating near maximum load capacity

• Adjust wheel travel to prevent clearance issues when installing shocks of different lengths

• Alters steering characteristics slightly, with longer shocks providing quicker steering and shorter shocks offering slower handling