444 Series Shocks — 343 mm (13.5\") rear, Black

PROGRESSIVE SUSPENSION 444 Series Shocks — 343 mm (13.5\") rear, Black – 85 Big Twin, 18, 20-21 Softail, 80, 83-98, 01-02, 04, 10, 23-26 Touring, 00-04, 06-07, 24-26 CVO

PROGRESSIVE SUSPENSION
1310-1589
444-4077B

Automatic frequency-sensing damping, deflective disc valving, hand-adjustable preload, progressive spring, high-pressure gas charged, made in USA. Verify clearance if changing length.

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The 444 Series Shocks deliver a next-level ride with automatic, frequency-based damping response for improved comfort and control. ⚙️

  • Frequency Sensing Technology (FST) automatically adjusts damping to match bump frequency for superior ride quality.
  • Deflective disc valving for consistent fluid control.
  • Hand-adjustable pre-load—no special tool required.
  • Progressive-rate spring and high-pressure gas charge for reliable performance.
  • Made in the USA.

Installation note: Shocks slightly longer or shorter than stock may alter head angle and steering response. Before purchase or installation, confirm wheel travel and clearance to avoid contact with exhaust, swingarm, axle, chain/belt guard or tire.

Recommended for heavy duty applications when the bike operates near its maximum load rating more than half the time.

: 1310-1589
In Stock

Data sheet

Type
Coilover Monotube
Units
Pair
Color/Finish
Black
Brand
PROGRESSIVE SUSPENSION
Duty
Super Duty
Adjustment Style
Automatic
Reservoir Location
Internal
Spring Type
Single Progressive Rate
Extended Length
343.00 mm (13.50")
Harley Family
CVO
Softail
Touring
Vintage Big Twin

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Electra Glide Standard Big Twin 1985
Harley Davidson Softail Heritage Classic 107 Softail 2018
Harley Davidson Softail Heritage Classic 107 Softail 2020
Harley Davidson Softail Heritage Classic 107 Softail 2021
Harley Davidson Electra Glide Highway King 114 Touring 2023
Harley Davidson Road King Touring 1994
Harley Davidson Road King Touring 1995
Harley Davidson Road King Touring 1996
Harley Davidson Road King Classic Touring 2004
Harley Davidson Road King Classic Touring 1998
Harley Davidson Road King Touring 1996
Harley Davidson Road King Touring 1997
Harley Davidson Road King Touring 2001
Harley Davidson Road King Touring 2002
Harley Davidson Road King Screamin Eagle CVO 2007
Harley Davidson Road King Screamin Eagle CVO 2002
Harley Davidson Road King Screamin Eagle CVO 2003
Harley Davidson Road King Special 114 Touring 2025
Harley Davidson Electra Glide Sport Touring 1980
Harley Davidson Electra Glide Sport Touring 1987
Harley Davidson Electra Glide Sport Touring 1988
Harley Davidson Electra Glide Sport Touring 1989
Harley Davidson Electra Glide Sport Touring 1990
Harley Davidson Electra Glide Sport Touring 1991
Harley Davidson Electra Glide Sport Touring 1992
Harley Davidson Electra Glide Sport Touring 1993
Harley Davidson Electra Glide Sport Touring 1994
Harley Davidson Electra Glide Touring 1983
Harley Davidson Electra Glide Touring 1986
Harley Davidson Electra Glide Touring 1987
Harley Davidson Electra Glide Standard Touring 1995
Harley Davidson Electra Glide Standard Touring 1996
Harley Davidson Electra Glide Classic Touring 1983
Harley Davidson Electra Glide Classic Touring 1984
Harley Davidson Electra Glide Classic Touring 1985
Harley Davidson Electra Glide Classic Touring 1986
Harley Davidson Electra Glide Classic Touring 1987
Harley Davidson Electra Glide Classic Touring 1988
Harley Davidson Electra Glide Classic Touring 1989
Harley Davidson Electra Glide Classic Touring 1990
Harley Davidson Electra Glide Classic Touring 1991
Harley Davidson Electra Glide Classic Touring 1992
Harley Davidson Electra Glide Classic Touring 1993
Harley Davidson Electra Glide Classic Touring 1994
Harley Davidson Electra Glide Classic Touring 1995
Harley Davidson Electra Glide Classic Touring 1998
Harley Davidson Electra Glide Classic Touring 1996
Harley Davidson Electra Glide Classic Touring 1997
Harley Davidson Electra Glide Classic Touring 1998
Harley Davidson Electra Glide Screamin Eagle CVO 2004
Harley Davidson Electra Glide Ultra Classic Touring 1989
Harley Davidson Electra Glide Ultra Classic Touring 1990
Harley Davidson Electra Glide Ultra Classic Touring 1991
Harley Davidson Electra Glide Ultra Classic Touring 1992
Harley Davidson Electra Glide Ultra Classic Touring 1993
Harley Davidson Electra Glide Ultra Classic Touring 1994
Harley Davidson Electra Glide Ultra Classic Touring 1995
Harley Davidson Electra Glide Ultra Classic Touring 1996
Harley Davidson Electra Glide Ultra Classic Special Anniversary Edition Touring 1995
Harley Davidson Electra Glide Ultra Classic Touring 1996
Harley Davidson Electra Glide Ultra Classic Touring 1997
Harley Davidson Electra Glide Ultra Classic Screamin Eagle CVO 2006
Harley Davidson Electra Glide Special Touring 1984
Harley Davidson Electra Glide Special Touring 1985
Harley Davidson Street Glide 117 Touring 2024
Harley Davidson Street Glide 117 Touring 2025
Harley Davidson Street Glide Solo 117 Touring 2026
Harley Davidson Street Glide Limited CVO 1977 ABS CVO 2026
Harley Davidson Street Glide CVO 121 CVO 2025
Harley Davidson Street Glide CVO 121 CVO 2026
Harley Davidson Street Glide Ultra 121 Touring 2025
Harley Davidson Trike Street Glide Touring 2010
Harley Davidson Tour Glide Touring 1984
Harley Davidson Tour Glide Classic Touring 1983
Harley Davidson Tour Glide Classic Touring 1984
Harley Davidson Tour Glide Classic Touring 1985
Harley Davidson Tour Glide Classic Touring 1986
Harley Davidson Tour Glide Classic Touring 1987
Harley Davidson Tour Glide Classic Touring 1988
Harley Davidson Tour Glide Classic Touring 1989
Harley Davidson Tour Glide Classic Touring 1990
Harley Davidson Tour Glide Classic Touring 1991
Harley Davidson Tour Glide Ultra Classic Touring 1989
Harley Davidson Tour Glide Ultra Classic Touring 1990
Harley Davidson Tour Glide Ultra Classic Touring 1991
Harley Davidson Tour Glide Ultra Classic Touring 1992
Harley Davidson Tour Glide Ultra Classic Touring 1993
Harley Davidson Tour Glide Ultra Classic Touring 1994
Harley Davidson Tour Glide Ultra Classic Touring 1995
Harley Davidson Tour Glide Ultra Classic Touring 1996
Harley Davidson Road Glide Touring 1998
Harley Davidson Road Glide Screamin Eagle CVO 2000
Harley Davidson Road Glide Screamin Eagle CVO 2001
Harley Davidson Road Glide 117 Touring 2025
Harley Davidson Road Glide 117 Touring 2026
Harley Davidson Road Glide CVO 121 CVO 2025
Harley Davidson Road Glide ST CVO 121 CVO 2024
Harley Davidson Road Glide ST CVO 121 CVO 2025
Harley Davidson Road Glide ST CVO 121 H.O. CVO 2026