Progressive Suspension 444 Series Shock - 13.5 Inch Heavy-Duty Black (Part #444-4073B)

The Progressive Suspension 444 Series Shock with a 13.5-inch length is engineered for enhanced durability and superior ride quality, making it ideal for heavy-duty motorcycle applications. Featuring the innovative Frequency Sensing Technology (FST), these shocks automatically adjust damping based on bump frequency, providing a smoother and more controlled ride across varied terrain. The shocks incorporate deflective disc valving for precise damping control and include a progressive-rate spring that adapts to rider load and riding conditions for consistent performance. These high-pressure gas-charged shocks are built in the USA and designed to withstand demanding conditions, ensuring longevity and reliable performance. The pre-load spring can be adjusted by hand without the need for special tools, allowing for quick customization to suit rider preferences or load changes. Shocks that are slightly longer than stock may alter the front head angle and enable quicker steering, while those that are slightly shorter can slow steering response and impact head angle. It is recommended to verify that wheel travel can be altered without causing clearance issues, such as contact with the exhaust, chain or belt guard, or tires, before installing shocks with non-OEM lengths. These shocks are suitable for motorcycles operating near or at maximum load ratings, typically over 50% of the time, making them a robust choice for heavy-duty use. Designed to improve handling, stability, and ride comfort, the Progressive Suspension 444 Series shocks are an excellent upgrade for riders seeking performance and durability in demanding riding conditions.

Features:

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

• Deflective disc valving: Provides precise damping control for smooth performance

• Pre-load spring: Easily adjustable by hand without special tools

• High-pressure gas-charged: Ensures consistent performance under demanding conditions

• Heavy-duty design: Suitable for bikes operating at or near maximum load capacity over 50% of the time

• Made in the USA: Quality craftsmanship and reliability