In warehouse stock

Progressive Suspension 444 Series Shock — 13" — Super-Duty — Black

Progressive Suspension · #1310-1588 · Rear Suspension / Suspension & Frame

Features the all-new Frequency Sensing Technology (FST) which allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
Deflective disc valving
Pre-load spring adjusts by hand with no special tool needed
Includes a progressive-rate spring and are high-pressure gas charged for consistent performance
Made in the USA

$860.95

In stock. Ships in 2–4 business days · free shipping over $150.

Questions? Call the shop: 801-361-3010

Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014

Description & features9 features

Features the all-new Frequency Sensing Technology (FST) which allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
Deflective disc valving
Pre-load spring adjusts by hand with no special tool needed
Includes a progressive-rate spring and are high-pressure gas charged for consistent performance
Made in the USA
Shocks slightly longer than stock may alter head angle slightly and provide quicker steering.
Shocks slightly shorter than stock may alter head angle and provide slower steering.
Before purchasing or attempting to install shocks different than OEM length, confirm your wheel travel can be altered without causing clearance issues, such as swingarm/axle to exhaust contact and chain/belt guard or tire contact.
Heavy duty applications recommended for bikes operating at or near maximum load rating over 50% of the time.

Specifications15 specs

Reservoir Location: Internal
Type: Coilover Monotube
Model: 444 Series
Progressive Spring Rate: 270.00 lb/in - 315.00 lb/in
Units: Pair
Duty: Super Duty
Mounting Position: Rear
Color/Finish: Black
Adjustment Style: Automatic
Extended Length: 13.00"
Riding Style: Street
Spring Type: Single Progressive Rate
Shipping weight: 9.45 lb
Package size: 17.1 × 6.8 × 3.8 in
Country of origin: USA

Fitment82 models · Harley-Davidson

Harley-Davidson82 models

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 Glide1985
FLH Electra Glide Revival2021
FLHC Electra Glide Classic1980–1981
FLHC Heritage Classic 1072018–2021
FLHFB Electra Glide Highway King2023
FLHR Road King1994–2022
FLHRC Road King Classic2007–2013
FLHRCI Road King Classic1995–2001, 2006
FLHRI Road King1996–1997, 2000–2006
FLHRS Road King Custom2006–2007
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 Custom2006
FLHRXS Road King Special2017–2025
FLHS Electra Glide Sport1980–1982, 1987–1993
FLHT Electra Glide Standard1986–1987, 1995–2009, 2019
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
FLHXXX Street Glide Trike2010–2011
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
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 #: 1310-1588
Progressive Suspension part #: 444-4076B

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 #444-4076B.