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 1995-2010 Harley-Davidson FXD Dyna Super Glide Base 2007-2017 Harley-Davidson FXDB Street Bob Base 1992,2007-2014 Harley-Davidson FXDC Super Glide Custom Base 2008-2017 Harley-Davidson FXDF Fat Bob Base 1993-2005,2007-2009,2014-2017 Harley-Davidson FXDL Dyna Low Rider Base 2016-2017 Harley-Davidson FXDLS Low Rider S Base 1993-2008,2010-2017 Harley-Davidson FXDWG Dyna Wide Glide Base 1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base 2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base