Progressive Suspension 412 Series Shock - 11 Inch Standard Black for Harley Dyna Models - Part Number 412-4037B

The Progressive Suspension 412 Series Shock is engineered specifically for Harley Dyna models, offering a simple yet durable upgrade to your motorcycle's suspension system. Designed with a five-position cam-style spring preload adjuster, it allows riders to easily fine-tune their ride for optimal comfort and handling. Whether you're seeking a smoother ride or improved performance under heavy loads, these shocks provide a cost-effective solution that enhances overall motorcycle dynamics.
Constructed in the USA, the 412 shocks feature a versatile design with options for full show-chrome or black covers, as well as chrome or black springs and end caps to match your aesthetic preferences. All shocks are measured from center-of-eyelet to center-of-eyelet, ensuring compatibility with your Harley Dyna. When installing on models from 1986 to 2015, some modifications to the chain or belt guard may be necessary to ensure proper clearance, especially if you choose shocks that are slightly longer or shorter than stock. Adjusting shock length can subtly influence the head angle, resulting in slightly quicker or slower steering responses.
Heavy-duty applications are recommended for bikes frequently operated at or near maximum load ratings, ensuring durability and performance under demanding conditions. Before purchasing or installing shocks that differ from OEM length, it is essential to verify that wheel travel and clearance with components like the swingarm, exhaust, and tires are maintained to prevent contact issues. This ensures a safe and reliable upgrade that can significantly improve your motorcycle's ride quality and handling performance.

Features:

• Designed specifically for Harley Dyna models, providing a tailored fit and performance enhancement

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

• Made in the USA with durable, high-quality materials

• Available with various aesthetic options including chrome or black covers, springs, and end caps

• Measurement from center-of-eyelet to center-of-eyelet ensures compatibility

• Suitable for heavy-duty applications requiring frequent maximum load operation

• Adjustable length options to influence steering and handling characteristics

• May require modifications for proper installation on certain models and configurations

• Ensures improved suspension performance, ride comfort, and handling