The 444 Series Shocks feature a proprietary patented Frequency Sensing Technology (FST) that has the unique ability to dynamically adjust damping as you ride; what this means is whether you’re hitting the small or big bumps in the road, the shock distributes oil through ports accordingly to soak up the hit making for an ultimately comfortable ride. A top mount threaded preload adjuster allows for fine-tuning with a simple twist of the cap. 444 Series shocks are available in 3 configurations: Standard Weight, Heavy-duty (250+ lbs.) and Super Heavy Duty (Touring Models only – 350+ lbs.).

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Year Make Model Submodel 2021 Harley-Davidson FLH Electra Glide Revival Base 2023 Harley-Davidson FLHFB Electra Glide Highway King Base 1997-2022 Harley-Davidson FLHR Road King Base 2007-2013 Harley-Davidson FLHRC Road King Classic Base 1998-2006 Harley-Davidson FLHRCI Road King Classic Base 1997,2000-2005 Harley-Davidson FLHRI Road King Base 2004-2007 Harley-Davidson FLHRS Road King Custom Base 2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base 2003 Harley-Davidson FLHRSEI2 Screamin Eagle Road King 2 Base 2017-2024 Harley-Davidson FLHRXS Road King Special Base 1997-2009,2019-2022 Harley-Davidson FLHT Electra Glide Standard Base 1997-2005,2007-2013 Harley-Davidson FLHTC Electra Glide Classic Base 1997-2006 Harley-Davidson FLHTCI Electra Glide Classic Base 1997,2007-2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base 1997-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base 2015-2016 Harley-Davidson FLHTCUL Electra Glide Ultra Classic Low Base 2003-2005 Harley-Davidson FLHTI Electra Glide Standard Base 2014-2024 Harley-Davidson FLHTK Ultra Limited Base 2015-2019 Harley-Davidson FLHTKL Ultra Limited Low Base 2014-2021 Harley-Davidson FLHTKSE CVO Limited Base 2006-2024 Harley-Davidson FLHX Street Glide Base 2014-2023 Harley-Davidson FLHXS Street Glide Special Base 2010,2015-2022 Harley-Davidson FLHXSE CVO Street Glide Base 2022-2023 Harley-Davidson FLHXST Street Glide ST Base 1980-1983 Harley-Davidson FLT Tour Glide Base 1998-2010,2016 Harley-Davidson FLTR Road Glide Base 1998-2006 Harley-Davidson FLTRI Road Glide Base 2020-2024 Harley-Davidson FLTRK Road Glide Limited Base 2022 Harley-Davidson FLTRKSE CVO Road Glide Limited Base 2009 Harley-Davidson FLTRSE3 CVO Road Glide Base 2011-2013,2016-2019 Harley-Davidson FLTRU Road Glide Ultra Base 2011,2015-2016 Harley-Davidson FLTRUSE CVO Road Glide Ultra Base 2015-2024 Harley-Davidson FLTRX Road Glide Base 2010-2013 Harley-Davidson FLTRX Road Glide Custom Base 2015-2023 Harley-Davidson FLTRXS Road Glide Special Base 2018-2022 Harley-Davidson FLTRXSE CVO Road Glide Base 2012 Harley-Davidson FLTRXSE CVO Road Glide Custom Base 2022-2023 Harley-Davidson FLTRXST Road Glide ST Base 1995-2010 Harley-Davidson XL1200C Sportster 1200 Custom Base 2016-2020 Harley-Davidson XL1200CX Roadster Base 2006-2011 Harley-Davidson XL1200L Sportster 1200 Low Base 2007-2012 Harley-Davidson XL1200N Sportster 1200 Nightster Base 2018-2021 Harley-Davidson XL1200NS Iron 1200 Base 2004-2009 Harley-Davidson XL1200R Sportster 1200 Roadster Base 1995-2003 Harley-Davidson XL1200S Sportster 1200 Sport Base 2014-2017 Harley-Davidson XL1200T SuperLow 1200T Base 2012-2016 Harley-Davidson XL1200V Seventy-Two Base 2010-2022 Harley-Davidson XL1200X Forty-Eight Base 2018-2019 Harley-Davidson XL1200XS Forty-Eight Special Base 2007 Harley-Davidson XL50 50th Anniversary Sportster Base 2004-2008 Harley-Davidson XL883 Sportster Base 1999-2009 Harley-Davidson XL883C Sportster 883 Custom Base 2005-2010 Harley-Davidson XL883L Sportster 883 Low Base 2012-2019 Harley-Davidson XL883L SuperLow Base 2009-2022 Harley-Davidson XL883N Iron 883 Base 2002-2003,2005-2007 Harley-Davidson XL883R Sportster 883 Roadster Base 1979 Harley-Davidson XLCH Base 1977-1978 Harley-Davidson XLCR Cafe Racer Base 1986-1987 Harley-Davidson XLH1100 Base 1988-2003 Harley-Davidson XLH1200 Base 1986-2003 Harley-Davidson XLH883 Base 1986-1996 Harley-Davidson XLH883DLX Sportster 883 Deluxe Base 1987-2003 Harley-Davidson XLH883HUG Sportster 883 Hugger Base 1979-1985 Harley-Davidson XLS Roadster Base 1983-1984 Harley-Davidson XR1000 Base 2009-2010 Harley-Davidson XR1200 Base 2010-2012 Harley-Davidson XR1200X Base