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Progressive Suspension 944 Series Shock — 12.5" — 11" Ride Height — Ultra Low-QPS — Heavy Duty — Black/Gold
In warehouse stock

Progressive Suspension 944 Series Shock — 12.5" — 11" Ride Height — Ultra Low-QPS — Heavy Duty — Black/Gold

Progressive Suspension · #1310-2501 · Rear Suspension / Suspension & Frame
  • Unique Ultra touring spring configuration provides the superb ride quality and suspension travel of a 13” shock but the custom lowered look of a 12” shock
  • Ultra Low Series shocks are designed to sit even lower; 2” lower than a stock Touring model
  • With the QPS upgrade kit installed on 444 Series and 944 Series shocks, it’s no longer necessary to take saddlebags off to adjust the sag when going from a single rider, to a two up riding configuration, and then back to a solo riding experience
  • QPS upgrade kit utilizes a sealed gear drive to smoothly adjust preload and offers the same range of preload adjustment as the original 444 or 944 series shock when it comes from the factory
  • Built around Progressive Suspension’s Frequency Sensing Technology (FST)
$1209.95
In stock. Ships in 2–4 business days · free shipping over $150.
View cart & check out →
Questions? Call the shop: 801-361-3010
Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014
Description & features14 features
  • Unique Ultra touring spring configuration provides the superb ride quality and suspension travel of a 13” shock but the custom lowered look of a 12” shock
  • Ultra Low Series shocks are designed to sit even lower; 2” lower than a stock Touring model
  • With the QPS upgrade kit installed on 444 Series and 944 Series shocks, it’s no longer necessary to take saddlebags off to adjust the sag when going from a single rider, to a two up riding configuration, and then back to a solo riding experience
  • QPS upgrade kit utilizes a sealed gear drive to smoothly adjust preload and offers the same range of preload adjustment as the original 444 or 944 series shock when it comes from the factory
  • Built around Progressive Suspension’s Frequency Sensing Technology (FST)
  • Allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
  • 944 FST Ultra Touring shocks are available in three configurations: Standard (Up to 250 lbs.), Heavy-duty (250 to 350 lbs.) and Super heavy-duty (350+ lbs.)
  • Unique spring combination delivers a lower rider height while being ridden or on a side stand, allowing you better control both at intersections and when parking
  • Adjust spring preload by hand; no special tool needed
  • Progressive rate mainsprings specifically designed for touring models
  • High-pressure gas charged for consistent performance
  • Made in the USA
  • Super heavy-duty applications are recommended for bikes operating above the manufacturer’s maximum load rating over 50% of the time.
  • Before purchasing or attempting to install shocks that are different than the OEM length, confirm that your wheel travel can be altered without causing clearance issues, such as swingarm/axle to exhaust contact as well as chain/belt guard or tire contact.
Specifications8 specs
Duty
Heavy Duty
Extended Length
12.50"
Units
Pair
Color/Finish
Black, Gold
Riding Style
Street
Shipping weight
9.65 lb
Package size
17 × 6.8 × 3.3 in
Country of origin
Mexico
Fitment86 models · Harley-Davidson
Harley-Davidson86 models
  • 1200 Electra Glide FLH1980
  • Electra Glide Classic FLH1981–1982
  • Electra Glide FL1980–1981
  • Electra Glide Heritage FLH1981
  • Electra Glide Police FLHTPI1995–2025
  • Electra Glide Police FLHTP1983–2006
  • Electra Glide Standard EFI FLHTI2000, 2002
  • Electra Glide Standard FLHT1983–1985
  • Electra Glide Ultra Classic FLHTCU1998–2006
  • Electra Glide Ultra Classic Low FLHTCUL2014
  • FLH Electra Glide1980–1985
  • FLH Electra Glide Revival2021
  • FLHC Electra Glide Classic1980–1981
  • FLHFB Electra Glide Highway King2023
  • FLHR Road King1994–2022
  • FLHRC Road King Classic2007–2013
  • FLHRCI Road King Classic1995–2006
  • FLHRI Road King1996–1997, 2000–2006
  • FLHRS Road King Custom2004–2007
  • FLHRSE3 Screamin Eagle Road King2007
  • FLHRSE4 Screamin Eagle Road King2008
  • FLHRSE5 CVO Road King2013
  • FLHRSE6 CVO Road King2014
  • FLHRSEI Screamin Eagle Road King2002
  • FLHRSEI2 Screamin Eagle Road King 22003
  • FLHRSI Road King Custom2004–2006
  • FLHRXS Road King Special2017–2025
  • FLHS Electra Glide Sport1980–1982, 1987–1993
  • FLHT Electra Glide Standard1986–1987, 1995–2009, 2019–2022
  • FLHTC Electra Glide Classic1983–2013
  • FLHTCI Electra Glide Classic1995–2006
  • FLHTCSE Screamin Eagle Electra Glide2004
  • FLHTCSE2 Screamin Eagle Electra Glide 22005
  • FLHTCU Electra Glide Ultra Classic1989–1997, 2007–2019
  • FLHTCUI Electra Glide Ultra Classic1995–2006
  • FLHTCUL Electra Glide Ultra Classic Low2015–2016
  • FLHTCUSE Screamin Eagle Ultra Classic Electra Glide2006
  • FLHTCUSE2 Screamin Eagle Ultra Classic Electra Glide2007
  • FLHTCUSE3 Screamin Eagle Ultra Classic Electra Glide2008
  • FLHTCUSE4 CVO Ultra Classic Electra Glide2009
  • FLHTCUSE5 CVO Ultra Classic Electra Glide2010
  • FLHTCUSE6 CVO Ultra Classic Electra Glide2011
  • FLHTCUSE7 CVO Ultra Classic Electra Glide2012
  • FLHTCUSE8 CVO Ultra Classic Electra Glide2013
  • FLHTI Electra Glide Standard2003–2006
  • FLHTK Ultra Limited2010–2024
  • FLHTKL Ultra Limited Low2015–2019
  • FLHTKSE CVO Limited2014–2021
  • FLHX Electra Glide Special1984–1985
  • FLHX Street Glide2006–2024
  • FLHXI Street Glide2006
  • FLHXS Street Glide Special2014–2023
  • FLHXSE CVO Street Glide2010, 2015–2025
  • FLHXSE2 CVO Street Glide2011
  • FLHXSE3 CVO Street Glide2012
  • FLHXST Street Glide ST2022–2023
  • FLHXU Street Glide Ultra2025
  • FLI Hydra-Glide Revival2024
  • FLT Tour Glide1980–1983
  • FLTC Tour Glide Classic1981–1993
  • FLTCU Tour Glide Ultra Classic1989–1995
  • FLTCUI Tour Glide Ultra Classic1996
  • FLTR Road Glide1998–2010, 2016
  • FLTRI Road Glide1998–2006
  • FLTRK Road Glide Limited2020–2024
  • FLTRKSE CVO Road Glide Limited2022–2023
  • FLTRSE3 CVO Road Glide2009
  • FLTRSEI Screamin Eagle Road Glide2000
  • FLTRSEI2 Screamin Eagle Road Glide 22001
  • FLTRU Road Glide Ultra2011–2013, 2016–2019
  • FLTRUSE CVO Road Glide Ultra2011, 2015–2016
  • FLTRX Road Glide2015, 2017–2024
  • FLTRX Road Glide Custom2011–2013
  • FLTRXS Road Glide Special2015–2023
  • FLTRXSE CVO Road Glide2012, 2018–2025
  • FLTRXSE2 CVO Road Glide Custom2013
  • FLTRXST Road Glide ST2022–2023
  • FLTRXSTSE CVO Road Glide ST2024–2025
  • Road Glide Custom FLTRX2025
  • Road Glide Police FLTRXP2024–2025
  • Road King EFI FLHR1995, 1998–1999
  • Road King Police FLHP2014–2025
  • Street Glide EFI FLHX2025
  • Tour Glide Classic FLTC1980, 1994
  • Tour Glide FLT1984–1986
  • Tour Glide Ultra Classic FLTCU1996
Fitment comes from the distributor’s catalog. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.
Part numbers
Salto part #
1310-2501
Progressive Suspension part #
944-4019UL-QPS
Shipping

In stock at a distributor warehouse. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.

Questions4 answers
Is it in stock?
Yes — the distributor shows it on a shelf at a regional warehouse right now. We check again the moment you order, before anything is charged.
How fast will it get to me?
Usually 2–4 business days by ground.
Will it fit my machine?
The distributor lists it for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
Is this genuine Progressive Suspension?
Yes. It ships new from the same distributors the big online stores buy from — Progressive Suspension part #944-4019UL-QPS.

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