Progressive Suspension 444 Series Shock - 13.5 inch Heavy-Duty Black - Part 444-4003B

The Progressive Suspension 444 Series Shock with a 13.5-inch length is engineered for heavy-duty motorcycle applications, offering enhanced durability and performance. 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 terrains. The deflective disc valving improves shock response, ensuring precise handling and stability during aggressive riding or loading conditions.
Built with a pre-load spring that can be manually adjusted without special tools, these shocks allow riders to fine-tune their suspension for optimal comfort and performance. They include a progressive-rate spring designed to handle increased loads and pressures, which are high-pressure gas charged for consistent damping performance. Made in the USA, these shocks are a reliable upgrade for riders seeking improved ride quality and longevity.
Note that shocks slightly longer than stock may alter the head angle and provide quicker steering, while shorter shocks may slow steering response. Before installation, confirm your bike’s wheel travel can accommodate length modifications without clearance issues, such as contact with the swingarm, exhaust, chain or belt guard, or tires. These shocks are recommended for bikes operating at or near maximum load ratings over 50% of the time, making them ideal for heavy-duty applications requiring robust suspension components.

Features:

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

• Deflective disc valving: Enhances shock response and stability.

• Pre-load spring: Easily adjustable by hand without special tools to customize ride firmness.

• Progressive-rate spring: Provides increased support and comfort under heavy loads.

• Gas-charged: Ensures consistent damping performance over time.

• Made in the USA: Quality craftsmanship and reliable manufacturing.

• Variable length compatibility: Slightly longer shocks may quicken steering; shorter shocks may slow steering; verify fitment to avoid clearance issues.

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