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Open Box
Progressive Suspension

Progressive 444 Shocks For Harley Dyna 1991-2017 Heavy Duty 12 1/2" / Black [Previously Installed]

Item: P853106
43 Read 43 Reviews 26 Q&As Write a Review

With Frequency Sensing Technology and progressively wound springs, the 444 shocks offer a significant ride upgrade over stock. Read More

$577.96
$679.95
Save $101.99 15%
Rebate Available! View Details

This product is vehicle specific.
Select a bike to ensure fitment.

Looking for a different bike? Change bike selection

Please select a Size & Finish to view availability.

Product Details

Item Condition: This item has been previously installed. Signs of installation may be present including opened packaging and minor scratches. The item may be missing tags, manuals or installation instructions, however it is fully functional.

Progressive Suspension  444 Series FST Shocks For Harley Dyna

After more than a decade of ruling the roads with the road proven shocks, Progressive Suspension unveiled another breakthrough design. Dubbed Frequency Sensing Technology (FST) for its unique ability to dynamically adjust damping as you ride. The result is superior performance no matter the road conditions. A top mount threaded preload adjuster allows for fine tuning with a simple twist of the cap.

Features:

  • Frequency Sensing Technology (FST) allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
  • Adjust spring pre-load by hand - no special tool needed
  • Progressive-rate spring
  • Deflective disc valving
  • Sold as a pair
  • Made in USA

Notes:

  • Depending on model, your stock shock length is 12" to 13.3"
  • Shock lengths are measured fully extended, eyelet to eyelet on centers
  • A change in height at one end of the bike may require a change at the other
  • Changing ride height can potentially change the trail and mechanical trail
  • Heavy Duty shocks are recommended for bikes operated at or near the OEM maximum load rating over 50% of the time
  • Prior to purchasing shocks that are different than your OEM length, please verify that wheel and suspension travel can be altered without causing clearance issues to the swingarm, axle, frame, tire, fender, chain/belt and guard, and exhaust
Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Black / Heavy Duty 12 1/2" RevZilla Item #1817906 MFR. Product # AvailabilityOnly 1 Left: Ships next business day
Please review this product's fitment notes & exceptions prior to purchase: Add to Cart
This product is vehicle specific.
Select a bike to ensure fitment.
Fitment Notes & Exceptions
  • Not for Switchback (FLD) models
  • To use the 11.5” shocks on FXDWG models, the fender tip may need to be trimmed or it may contact the belt guard as shown in figure 1 image
  • Prior to purchasing shocks that are different than your OEM length, please verify that wheel and suspension travel can be altered without causing clearance issues to the swingarm, axle, frame, tire, fender, chain/belt and guard, and exhaust
This Product Fits
Harley Davidson
Dyna Convertible FXDS 1994-2000
Dyna Fat Bob FXDF 2008-2017
Dyna Glide Custom FXDC 1992
Dyna Glide Daytona FXDB-D 1992
Dyna Glide Sturgis FXDB-S 1991
Dyna Low Rider FXDL/I 1993-2017
Dyna Low Rider S FXDLS 2016, 2017
Dyna Street Bob FXDB/I 2006-2017
Dyna Super Glide Custom FXDC/I 2005-2014
Dyna Super Glide FXD/I 1995-2010
Dyna Super Glide Sport FXDX 1999-2005
Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003
Dyna Wide Glide FXDWG/I 1993-2017
Product Description
Part Numbers
Fitment
43 Customer Reviews
43 4.5/5
26 Questions & 36 Answers

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