Progressive Suspension 444 Series Shock - 13.5 inch Standard/Heavy-Duty Chrome 444-4003C

444 Series Shock - 13.5" - Standard/Heavy-Duty - Chrome

The Progressive Suspension 444 Series Shock offers advanced ride adjustment capabilities with its innovative Frequency Sensing Technology (FST), which detects the frequency of bumps and automatically adjusts damping for a smoother, more controlled ride. Constructed with deflective disc valving, these shocks provide precise damping control to enhance comfort and handling on various terrains. The pre-load spring can be easily adjusted by hand, eliminating the need for special tools, allowing for quick customization to suit rider preferences and load conditions. Incorporating a progressive-rate spring and high-pressure gas charging, these shocks deliver consistent performance and durability, making them ideal for demanding riding environments.

Designed in the USA, the shocks are slightly longer than stock, which may slightly alter the head angle and result in quicker steering response. Conversely, shorter shocks may slow steering and modify handling dynamics. It is important to verify that your wheel travel can accommodate these length variations without causing clearance issues such as contact with the exhaust, swingarm, chain or belt guard, or tires. Heavy-duty applications are recommended for bikes regularly operating at or near maximum load ratings, typically over 50% of the time, to ensure optimal performance and longevity. These shocks are suitable for riders seeking a high-performance upgrade to improve ride quality, handling, and load capacity, making them a versatile choice for both street and off-road motorcycles.

Features:

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

• Deflective disc valving: Provides precise damping control

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

• Progressive-rate spring: Ensures smooth performance under varying loads

• High-pressure gas charged: Delivers consistent damping performance

• Made in the USA: Quality manufacturing standards

• Adjustable length: Slightly longer or shorter options to modify steering response and handling

• Heavy-duty application suitability: Ideal for bikes operating near maximum load capacity