World's Largest Aftermarket Motorcycle Parts and Accessories Superstore!


Last Day to Shop Black Friday Deals
Last Day to Shop Black Friday Deals

Progressive Suspension 444 Series Shocks

Select your motorcycle to guarantee fitment! Select A Motorcycle

Product may vary from photo(s).

$602.96 Save 10%! Regularly: $669.99

Free Ground Shipping

J&P Part: 504-527 On Sale!

– Order in the next to ship today


Install Shocks

Progressive Suspension 444 Series Shocks

• After more than a decade of ruling the roads with their famous 440 Series shocks with IAS, Progressive Suspension has unveiled another breakthrough design

• It is dubbed Frequency Sensing Technology (FST) for its unique ability to dynamically adjust damping as you ride

• Frequency Sensing Technology allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality

• These shocks also feature deflective disc valving, hand adjustable spring pre-load (no special tools needed), and progressive rate springs

• High pressure gas charged for consistent performance

• Sold in pairs

• Lifetime Limited Warranty and are Made in USA

Made In The USA This product was proudly made in the USA

Product Specs

Adjustable: Yes

Finish: Chrome

Gas Filled: Yes

Length: 12-1/2″

Manufacturer Part Number: 444-4055C

Sold in Units: Pair

Standard or Heavy Duty: Standard Duty

Important Product Notes

Note: When shocks are shorter than stock, clearance must be carefully checked for potentially dangerous interference.

Note: Standard Duty shocks are for ride loads under 225 lbs., Heavy Duty shocks are for ride loads regularly over 225 lbs.

Fast Free Shipping on Orders at $99.99 & Over
Free Tech
120 Day

Select Your Motorcycle

Live Help

Get Help From Our Industry Experts

Call Us 24/7 1-800-318-4823

Help / FAQs