PROGRESSIVE SUSPENSION

Upgrade Kit - Quik Preload System - 444/944

1310-2504

Regular price $439.95

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DESCRIPTION


Fitments

Years Make Model
1992 Harley-Davidson FXDB-D Dyna Glide Daytona
1991 Harley-Davidson FXDB-S Dyna Glide Sturgis
1995 - 2006 Harley-Davidson FXD Dyna Super Glide
1992 - 2014 Harley-Davidson FXDC Super Glide Custom
2006 - 2017 Harley-Davidson FXDB Street Bob
1993 - 2005 Harley-Davidson FXDL Dyna Low Rider
1995 - 2000 Harley-Davidson FXDS-Conv Dyna Convertible
1993 - 2017 Harley-Davidson FXDWG Dyna Wide Glide
1999 - 2005 Harley-Davidson FXDX Dyna Super Glide Sport
2014 - 2025 Harley-Davidson Road King Police FLHP
2014 - 2025 Harley-Davidson Electra Glide Police FLHTPI
1979 - 1985 Harley-Davidson Sportster 750 XR
1979 - 1985 Harley-Davidson XLS Roadster
1983 - 1985 Harley-Davidson XR1000
1979 - 1985 Harley-Davidson XLH1000
1996 - 2019 Harley-Davidson XL1200C Sportster 1200 Custom
1987 - 2003 Harley-Davidson XLH883HUG Sportster 883 Hugger
1986 - 2001 Harley-Davidson XLH883
2016 - 2020 Harley-Davidson XL1200CX Roadster
2007 - 2012 Harley-Davidson XL1200N Sportster 1200 Nightster
2018 - 2021 Harley-Davidson XL1200NS Iron 1200
2010 - 2022 Harley-Davidson XL1200X Forty-Eight
2009 - 2022 Harley-Davidson XL883N Iron 883
1986 - 1995 Harley-Davidson XLH883DLX Sportster 883 Deluxe
2002 - 2022 Harley-Davidson FLHR Road King
2014 Harley-Davidson FLHTK Electra Glide Ultra Limited
2015 - 2024 Harley-Davidson FLHTK Ultra Limited
2014 - 2021 Harley-Davidson FLHTKSE CVO Limited
2014 - 2024 Harley-Davidson FLHX Street Glide
2025 Harley-Davidson Street Glide EFI FLHX
2025 Harley-Davidson CVO Street Glide FLHXSE
2020 - 2024 Harley-Davidson FLTRK Road Glide Limited
2015 - 2024 Harley-Davidson FLTRX Road Glide
2015 - 2023 Harley-Davidson FLTRXS Road Glide Special
2009 - 2024 Harley-Davidson FLHTCUTG Tri Glide Ultra
2025 Harley-Davidson Tri Glide Ultra Classic FLHTCUTG
2020 - 2022 Harley-Davidson FLHTCUTGSE CVO Tri Glide
2010 - 2011 Harley-Davidson FLHXXX Street Glide Trike
2015 - 2024 Harley-Davidson FLRT Freewheeler
2004 - 2005 Harley-Davidson VRSCB V-Rod
2006 Harley-Davidson Low Rider FXDL
2016 - 2017 Harley-Davidson FXDLS Low Rider S
1987 - 1993 Harley-Davidson Sportster 883 XLH
2004 - 2006 Harley-Davidson XL883C Sportster 883 Custom
2004 - 2009 Harley-Davidson XL1200R Sportster 1200 Roadster
2014 - 2017 Harley-Davidson XL1200T SuperLow 1200T
2012 - 2016 Harley-Davidson XL1200V Seventy-Two
1999 - 2003 Harley-Davidson Sportster 1200 XLH
1980 - 1985 Harley-Davidson FLH Electra Glide
1998 - 2016 Harley-Davidson FLTR Road Glide
2004 - 2005 Harley-Davidson FLHRS Road King Custom
2017 - 2025 Harley-Davidson FLHRXS Road King Special
2014 - 2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic
2015 - 2016 Harley-Davidson FLHTCUL Electra Glide Ultra Classic Low
2014 - 2023 Harley-Davidson FLHXS Street Glide Special
2015 - 2024 Harley-Davidson FLHXSE CVO Street Glide
2015 - 2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra
2023 - 2024 Harley-Davidson FLTRT Road Glide 3
2006 Harley-Davidson FXDCI Super Glide Custom
2008 - 2017 Harley-Davidson FXDF Fat Bob
1983 - 1985 Harley-Davidson XLX 1000
2018 - 2019 Harley-Davidson XL1200XS Forty-Eight Special
1988 - 1998 Harley-Davidson XLH1200
2002 - 2005 Harley-Davidson FLHRCI Road King Classic
2025 Harley-Davidson Road Glide Custom FLTRX
2022 - 2023 Harley-Davidson FLTRXST Road Glide ST
2024 - 2025 Harley-Davidson FLTRXSTSE CVO Road Glide ST
2002 - 2006 Harley-Davidson VRSCA V-Rod
2001 - 2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport
2024 - 2025 Harley-Davidson Road Glide Police FLTRXP
1986 - 1987 Harley-Davidson XLH1100
2006 Harley-Davidson XL883R Sportster 883 Roadster
2011 - 2012 Harley-Davidson Sportster 1200 XR
1980 - 1983 Harley-Davidson FLT Tour Glide
1984 - 1986 Harley-Davidson Tour Glide FLT
2019 - 2022 Harley-Davidson FLHT Electra Glide Standard
2022 - 2023 Harley-Davidson FLHXST Street Glide ST
2018 - 2025 Harley-Davidson FLTRXSE CVO Road Glide
1979 Harley-Davidson Caf Racer XLCR
1979 Harley-Davidson XLCH
2006 Harley-Davidson XL1200L Sportster 1200 Low
2022 Harley-Davidson FLTRKSE CVO Road Glide Limited
2016 - 2019 Harley-Davidson FLTRU Road Glide Ultra
2025 Harley-Davidson Freewheeler FLRT
2006 Harley-Davidson FXDI35 Dyna 35th Anniversary Super Glide
2004 - 2006 Harley-Davidson XL883 Sportster
2005 - 2006 Harley-Davidson XL883L Sportster 883 Low
1977 - 1978 Harley-Davidson XLCR Cafe Racer
2025 Harley-Davidson Street Glide Ultra FLHXU
2010 Harley-Davidson XR1200
2021 Harley-Davidson FLH Electra Glide Revival
2023 Harley-Davidson FLHFB Electra Glide Highway King
2025 Harley-Davidson Road Glide 3 FLTRT
2007 Harley-Davidson 883 Roadster XLR
2006 Harley-Davidson VRSCD Night Rod

Features

  • Compatible with 444 and 944 Series shocks with Standard, Heavy Duty, and Super Duty spring rates
  • Sealed gear driven preload adjuster with 17 mm of adjustment
  • Make quick preload adjustments without removing saddlebags
  • Replaces original 444/944 Series upper shock cap
  • 30 complete turns of preload fine adjustment
  • Adjusts with 8 mm socket wrench (not included)
  • Improves comfort and performance

  • Specs

  • Units: Kit
  • Product Name: Upgrade Kit
  • Riding Style: Street

  • Approximate Package Weight & Dimensions

  • Weight: 2.04
  • Height: 2.48
  • Length: 11.57
  • Width: 5.83