Progressive 422 Series Adjustable Shocks

Item Number: 324900

4.5 stars 2 Reviews

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Product Description

Progressive Suspension

Progressive 422 Series Adjustable Shocks

This suspension system for the venerable Softail style chassis is exclusively available as an adjustable ride height version. Progressive Suspension was the first to introduce aftermarket shocks for the most popular frame design ever produced and they continue to refine their work. Two inches of ride height adjustment as well as adjustable for spring preload to accommodate varying loads and rider weights, all wrapped in a chrome shroud and now available in a heavy duty version for two-up or heavily loaded bikes!

  • Sold in pairs for machines originally equipped with two shocks
  • Chrome plated
  • 2" of ride height adjustment
  • Preload adjustable
  • High pressure gas charged monotube for consistent damping performance

Spec Details
Finish Chrome
Length Varies (make selection above)
Quantity Pair
Spring Rate Varies (make selection above)

Vehicle Fitment

Fitment is guaranteed or your money back plus free return shipping. Don't waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson

  • FLS Softail Slim 2013-2016
  • FLSS Softail Slim S 2016
  • FLST Heritage Softail 1989-1990, 2006
  • FLSTC Heritage Softail Classic 1989-2016
  • FLSTCI Heritage Softail Classic 2001-2006
  • FLSTF Softail Fat Boy 1990-2016
  • FLSTFB Softail Fat Boy Lo 2010-2016
  • FLSTFBS Softail Fat Boy S 2016
  • FLSTFI Softail Fat Boy 2001-2006
  • FLSTFSE2 CVO Fat Boy 2006
  • FLSTFSE CVO Fat Boy 2005
  • FLSTI Heritage Softail 2006
  • FLSTN Heritage Softail Nostalgia 1993
  • FLSTN Heritage Softail Special 1994-1996
  • FLSTN Softail Deluxe 2005-2016
  • FLSTNI Softail Deluxe 2005-2006
  • FLSTNSE CVO Softail Deluxe 2014-2015
  • FLSTS Heritage Springer Softail 1997-2003
  • FLSTSB Softail Cross Bones 2009-2011
  • FLSTSE2 CVO Softail Convertible 2011
  • FLSTSE CVO Softail Convertible 2010
  • FXCW Softail Rocker 2008-2009
  • FXCWC Softail Rocker C 2008-2011
  • FXS Softail Blackline 2011-2013
  • FXSB Softail Breakout 2013-2016
  • FXSBSE CVO Softail Breakout 2013-2014
  • FXST Softail 1989-1990
  • FXST Softail Standard 1999-2007
  • FXSTB Softail Night Train 1999-2009
  • FXSTBI Softail Night Train 2001-2006
  • FXSTC Softail Custom 1989-1999, 2007-2010
  • FXSTD Softail Deuce 2000-2007
  • FXSTDI Softail Deuce 2001-2006
  • FXSTDSE2 CVO Softail Deuce 2004
  • FXSTDSE CVO Softail Deuce 2003
  • FXSTI Softail Standard 2001-2006
  • FXSTS Springer Softail 1989-2006
  • FXSTSB Softail Bad Boy 1995-1997
  • FXSTSI Springer Softail 2001-2006
  • FXSTSSE2 CVO Softail Springer 2008
  • FXSTSSE3 CVO Softail Springer 2009
  • FXSTSSE CVO Softail Springer 2007

Customer Reviews

FLSTF Crusin'

out of 5
5 stars

By on December 7, 2016

I purchase a set of Heavy-Duty Progressive 422 adjustable shocks for my 2007 Fat Boy. These puppies ride smooth! They allow me and the wife to saddle up with loaded bags without bottoming out. Adjustment is fairly easy with the provided spanner. I should have purchased the RAP version for easier adjustment without tools. Great replacements for blown out factory HD shocks.

5 stars
5 stars

Get these!

out of 5
4 stars

By on May 30, 2017

Yeah baby! I can finally reach the ground and cornering is so much easier. I didn't even lower the front shocks, no need to but that's just my preference. A bit stiff but it can and will be adjusted.

4 stars
4 stars

Questions & Answers

  • Does this shock adjust the same number of turns as the original?

    By: joe

    These shocks will use the factory Harley Davidson preload spanner wrench OEM part # 94455-89 or the provided Progressive Suspension tool with these shocks. Before installing the Progressive Suspension adjustable ride height shock, spin the non-flanged nut all the way onto the stud mount, followed by a bushing-cup, bushing, and sleeve. Then install these shocks as you would a stock unit as indicated in the OEM service manual. With the non-flanged nut spun all the way onto the stud, the stock ride height is achieved. Once you have installed the other bushing, bushing-cup, and flanged nut, you can now install the safety E-clip. This E-clip is snapped into the groove near the end of the stud mount where the threads stop. This is to serve as a reference point ONLY - when the flanged-nut reaches it you have lowered your ride height the maximum 2 inches.

    By: Staff

  • With the bike lowered the two inches how much does it affect the ride

    By: jeff

    If you were to just lower the rear on its own, steering would be slowed and the bike would tend to run wide on longer corners. That, and the handlebars would make it feel like the bike wanted to "fall" into the turn, so you'd have to work a little harder to keep it going the direction you want. Depending on your tastes, this may or may not bother you.

    To keep the bike handling same, you'll want to lower the front the same amount. This can be done by installing a Progressive Fork Lowering Kit up front. In doing so, any changes to the rear are mitigated in lowering the front the same amount, thereby keeping steering geometry the same. Your bike will handle just as it did before. Actually, it'll be noticeably better since all suspension components have been upgraded.

    One thing to keep in mind is spring rate. Choosing the right spring rate will make a big difference in how your bike responds to a Progressive suspension upgrade. With Progressive's suspension components, heavy-duty springs are best suited for solo riders over 220lbs. If you ride two-up and/or with a full load of luggage at least 50% of the time, heavy-duty shocks are also recommended.

    By: Staff