Progressive Suspension 412 Series Shock - 11-inch Heavy Duty Chrome for Harley-Davidson 412-4045C

The Progressive Suspension 412 Series Shock is engineered specifically for Harley-Davidson models, providing a reliable upgrade to your motorcycle's suspension system. Featuring a simple yet durable design, these shocks are an economical choice for enhancing ride comfort and handling. The 11-inch length, measured from center-of-eyelet to center-of-eyelet, ensures compatibility with a range of Harley models, while the heavy-duty construction supports bikes operated near or at their maximum load ratings. The chrome finish adds a classic aesthetic appeal, making these shocks a stylish and functional addition to your motorcycle.
The 412 Series shocks include a five-position cam-style spring preload adjuster, allowing you to fine-tune your ride with ease. Whether you're seeking a softer feel or a firmer ride, this adjuster provides quick customization to suit your preferences and riding conditions. Designed with versatility in mind, these shocks are suitable for various style options, including full show-chrome, black covers, chrome or black springs, and end caps. Some models are approved for road use; please refer to the latest certification for current listing details.
Installation notes indicate that on Harley '86-'15 XL models, modifications such as spacer adjustments may be necessary to ensure proper clearance with the chain or belt guard. Slight variations in shock length—either longer or shorter than stock—can influence steering behavior by altering the head angle, providing quicker or slower steering responses accordingly. For heavy-duty applications, these shocks are recommended when the bike frequently carries loads near the maximum capacity. It's important to verify wheel travel and clearance issues with swingarm, exhaust, or other components before choosing shocks that differ from OEM length to prevent contact issues.
Crafted in the USA, the Progressive Suspension 412 Series Shock offers a durable, performance-oriented upgrade that combines quality, style, and adjustability for Harley-Davidson riders seeking to improve their bike's handling and aesthetics.

Features:

• Designed specifically for Harley-Davidson models, ensuring perfect fit and performance

• Heavy-duty construction supports maximum load capacity and durability

• Five-position cam-style spring preload adjuster for customizable ride comfort

• Chrome finish enhances visual appeal and corrosion resistance

• Includes multiple style options, such as full show-chrome or black covers, and chrome or black springs and end caps

• Meets road-use standards; refer to latest certification for current listing

• Made in the USA with high-quality materials for long-lasting performance

• Installation may require modifications on '86-'15 XL models for proper clearance

• Alterations in shock length can influence steering response by changing head angle

• Suitable for heavy-duty applications when carrying loads near maximum ratings