Progressive Suspension 444 Series Shock - 13 Inch Standard/Heavy-Duty Chrome (Part 444-4002C)

Upgrade your motorcycle's ride quality with the Progressive Suspension 444 Series Shock, designed for optimal performance and durability. Featuring innovative Frequency Sensing Technology (FST), these shocks automatically adjust damping by sensing bump frequencies, providing a smoother and more controlled ride across various terrains. The deflective disc valving ensures consistent damping characteristics, while the pre-load spring can be easily adjusted by hand without special tools, allowing for quick customization based on rider weight and riding conditions. Equipped with a progressive-rate spring, these shocks deliver a comfortable ride during normal use while providing extra support during heavier loads or aggressive riding. They are high-pressure gas charged to maintain consistent performance and are manufactured in the USA, promising quality and reliability. The shocks are slightly longer than stock, which may alter the head angle and result in quicker steering, or slightly shorter, which can slow steering response—always verify your wheel travel and clearance to prevent contact issues with swingarm, axle, exhaust, chain or belt guard, or tires before installation. These shocks are recommended for heavy-duty applications, especially on bikes frequently operating near or at maximum load capacity, ensuring durability and sustained performance under demanding conditions.

Features:

• Frequency Sensing Technology (FST): Automatically adjusts damping based on bump frequency for superior ride quality

• Deflective disc valving: Provides consistent damping characteristics

• Pre-load spring: Easily adjustable by hand without tools for personalized ride tuning

• Progressive-rate spring: Offers a smooth ride with additional support during heavy loads

• High-pressure gas charged: Ensures consistent shock performance over time

• Made in the USA: Quality manufacturing standards

• Slightly longer or shorter than stock: May alter steering response, verify clearance before installation

• Heavy-duty application suitability: Designed for bikes operating at or near maximum load for extended periods