The 444 Series is built around Progressive Suspension's patented Frequency Sensing Technology (FST), which reads bump frequency and adjusts damping in real time, routing oil through dedicated ports to absorb both small chatter and big hits. A top-mount threaded preload adjuster allows fine-tuning with a simple twist of the cap.

Features

• Frequency Sensing Technology (FST) self-adjusting damping
• Top-mount threaded preload adjuster, no tools required
• Progressive-rate main springs
• Available in Standard, Heavy Duty, and Super Heavy Duty configurations
• Hand-built, tuned, and dyno-tested

What's Included

• Pair of shocks

Installation Notes

Note: Before installing shocks of a different length than stock, confirm that wheel and suspension travel can change without creating clearance issues.

Specifications

• Extended length: 12"
• Duty: Standard
• Finish: Black
• Sold in pairs
• Limited lifetime warranty