Progressive Suspension 412 Series Shock - 13 inch Black for Harley FLH/T Models (Part #412-4072B)

The Progressive Suspension 412 Series Shock is a reliable upgrade designed specifically for Harley FLH/T models, offering improved ride quality and handling. Featuring a simple yet durable construction, this shock absorber provides an economical way to enhance your motorcycle's suspension performance. Its five-position cam-style spring preload adjuster allows you to easily customize the ride height and firmness to suit your riding preferences, ensuring optimal comfort and stability on the road. Suitable for various applications, some shocks in this series are approved for street use, but it’s recommended to consult the latest certification details for compliance.

Constructed in the USA, the 412 Series Shock is available in multiple style options, including full show-chrome or black covers, with either chrome or black springs and end caps, allowing you to match your bike’s aesthetic. The shock’s length is measured from center-of-eyelet to center-of-eyelet, and it’s essential to verify compatibility when replacing OEM shocks, especially for '86-'15 XL models, where modifications to the chain or belt guard might be necessary for proper clearance. Installing a shock that is slightly longer or shorter than the stock can influence the head angle, resulting in faster or slower steering response, respectively.

For heavy-duty riding conditions, particularly when operating near the maximum load rating over half the time, heavy-duty applications of the 412 Series are recommended. Before purchasing, ensure your wheel travel can accommodate the change in shock length without causing contact issues with components such as the swingarm, axle, exhaust, or tires. Proper installation and compatibility checks will ensure your Harley delivers a smooth, controlled ride while maintaining safety and performance standards.

Features:

• Designed specifically for Harley FLH/T models for optimal fit and performance

• Five-position cam-style spring preload adjuster for customizable ride height and firmness

• Multiple styling options including full show-chrome or black covers and springs

• Made in the USA with durable construction for long-lasting performance

• Center-to-center eyelet measurement ensures accurate replacement fit

• Suitable for street use with certification verification for compliance

• Compatible with various model years with possible modifications for '86-'15 XL models

• Provides improved suspension response, potentially altering steering and handling

• Recommended for heavy-duty applications when operating near maximum load capacity