Progressive Suspension 444-4048B Series Heavy Duty Rear Shocks - 444 12.5 Black

The Progressive Suspension 444 Series Shocks represent a breakthrough in motorcycle suspension technology with their patented Frequency Sensing Technology (FST). Building on over a decade of proven performance with the 440 Series, these premium rear shocks automatically sense bump frequency and dynamically adjust damping for superior ride quality whether you're cruising smooth highways or navigating rough roads.

Key Features:

• Patented Frequency Sensing Technology (FST) automatically adjusts damping based on bump frequency for optimal ride quality
• Deflective disc valving ensures high-level control without harshness
• Hand-adjustable spring pre-load requires no special tools for easy tuning
• Progressive rate springs deliver smooth compression at the top while maintaining performance under aggressive riding
• High-pressure gas charged for consistent, fade-free performance
• Heavy-duty spring rate recommended for riders over 250 lbs or bikes operating at maximum load rating over 50% of the time
• 12.5-inch eye-to-eye length
• Black finish for sleek appearance
• Hand-built, tuned, and dyno-tested for quality assurance
• Sold in pairs
• Made in USA with Limited Lifetime Warranty

Every 444 Series shock is individually hand-built and dyno-tested to ensure it meets Progressive Suspension's exacting standards. The mono-tube design keeps fluid less aerated and cools faster than standard twin-tube shocks, delivering consistent performance mile after mile.