{"product_id":"progressive-444-shocks-harley-davidson-4","title":"Progressive 444 Shocks — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)","description":"\u003cp\u003eProgressive 444 Series shocks feature Frequency Sensing Technology (FST) that dynamically adjusts damping as you ride, responding to small bumps and large impacts with automatic oil distribution for consistent comfort. Hand-adjustable preload and a choice of spring rates make these a tunable suspension upgrade for Harley-Davidson cruisers.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFrequency Sensing Technology (FST) automatically adjusts damping to road conditions\u003c\/li\u003e\n  \u003cli\u003eDeflective disc valving for progressive damping curve\u003c\/li\u003e\n  \u003cli\u003eHand-adjustable preload — no special tools required\u003c\/li\u003e\n  \u003cli\u003eAvailable in standard or heavy duty spring rates\u003c\/li\u003e\n  \u003cli\u003eBlack or chrome finish options\u003c\/li\u003e\n  \u003cli\u003eMade in USA with Limited Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Progressive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 444-4020B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Suspension \/ Shocks and Struts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 8.6 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish Options:\u003c\/strong\u003e Black or chrome\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCalifornia Prop 65 Warning:\u003c\/strong\u003e This product contains chemicals known to the State of California to cause cancer and reproductive harm. See www.P65Warnings.ca.gov for more information.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson cruiser models. Confirm your specific year and model before ordering to ensure correct fitment.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is Frequency Sensing Technology and how does it work?\u003c\/h3\u003e\n\u003cp\u003eFST lets the shock sense bump frequency and automatically adjust internal oil ports to soak up both small and large impacts without manual adjustment.\u003c\/p\u003e\n\u003ch3\u003eCan I adjust the preload myself?\u003c\/h3\u003e\n\u003cp\u003eYes — the top-mount threaded preload adjuster twists by hand. No special tools or shop visit needed.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between standard and heavy duty spring rates?\u003c\/h3\u003e\n\u003cp\u003eHeavy duty rates support more rider weight or cargo. Standard rates suit solo riders or lighter loads. Choose based on your typical riding setup.\u003c\/p\u003e\n\u003ch3\u003eAre these covered by a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes — Progressive includes a Limited Lifetime Warranty on 444 Series shocks.\u003c\/p\u003e\n\u003ch3\u003eAre these street legal?\u003c\/h3\u003e\n\u003cp\u003eYes — the 444 shocks are designed for street use and comply with Harley-Davidson suspension standards.\u003c\/p\u003e\n\u003ch2\u003eCalifornia Proposition 65 Warning\u003c\/h2\u003e\n\u003cp style=\"font-size:11px;color:#888;\"\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov\u003c\/p\u003e","brand":"Progressive","offers":[{"title":"Default Title","offer_id":53040148807791,"sku":"T14-614097","price":860.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_1d39a12b-95da-4c36-8dd1-fecabe2d34f3.png?v=1779565618","url":"https:\/\/vtwinbikers.com\/products\/progressive-444-shocks-harley-davidson-4","provider":"Vtwinbikers","version":"1.0","type":"link"}