Progressive Suspension 412 Series Shock - 12-Inch Standard Chrome for Harley-Davidson Models (Part #412-4050C)

The Progressive Suspension 412 Series Shock designed for Harley-Davidson motorcycles offers a reliable and cost-effective upgrade to your bike's suspension system. Crafted specifically for Harley models, these shocks feature a simple yet durable design that enhances ride comfort and handling. The 12-inch length and adjustable spring preload allow riders to fine-tune their suspension for optimal performance under various riding conditions.
Constructed in the USA, these shocks are available with various style options, including full show-chrome or black covers, as well as chrome or black springs and end caps, allowing customization to match your bike's aesthetic. The five-position cam-style spring preload adjuster provides quick and easy adjustments, enabling you to dial in your ride without hassle. Many shocks in this series are approved for road use, but it is advisable to consult the latest certification to confirm compliance.
When installing these shocks on Harley models from 1986 to 2015, some modifications, such as spacing the chain or belt guard, may be necessary to ensure proper clearance. Slight variations in shock length can influence steering characteristics; a longer shock may provide quicker steering, while a shorter one can result in slower handling. Heavy-duty applications are recommended for bikes frequently operated near maximum load ratings, typically over 50% of the time, to ensure durability and performance.
Before purchasing or installing shocks that differ from OEM length, verify that your wheel travel can accommodate these changes without contact issues with the swingarm, axle, exhaust, or tires. Proper installation and compatibility are essential for maintaining safe and efficient motorcycle operation. With its robust design and adjustable features, the Progressive Suspension 412 Series Shock is an excellent choice for riders seeking improved ride quality and customization on their Harley-Davidson motorcycle.

Features:

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

• 12-inch length with center-to-center measurement for easy installation

• Five-position cam-style spring preload adjuster for quick tuning

• Available in full show-chrome or black covers, with chrome or black springs and end caps for customization

• Constructed in the USA for quality and durability

• Suitable for road use, with certification confirmation recommended

• Adjustable length options influence steering feel, with longer shocks offering quicker handling

• Heavy-duty applications recommended for bikes frequently operated near maximum load

• Compatibility considerations include clearance adjustments for chain/belt guards and other components