{"product_id":"progressive-444-shocks-harley-davidson-10","title":"Progressive 444 Shocks — Harley-Davidson","description":"\u003cp\u003eProgressive 444 Series shocks feature proprietary Frequency Sensing Technology (FST) that dynamically adjusts damping in real time as you ride over bumps of any size for a consistently comfortable ride. Hand-adjustable preload, deflective disc valving, and progressive-rate springs come in standard or heavy-duty configurations with black or chrome finish.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFrequency Sensing Technology (FST) automatically adjusts damping based on bump frequency\u003c\/li\u003e\n  \u003cli\u003eDeflective disc valve design\u003c\/li\u003e\n  \u003cli\u003eProgressive-rate spring\u003c\/li\u003e\n  \u003cli\u003eHand-adjustable preload — no special tools needed\u003c\/li\u003e\n  \u003cli\u003eStandard or heavy-duty spring rate options\u003c\/li\u003e\n  \u003cli\u003eBlack or chrome finish available\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 444-4051B\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 8.4 lb per shock\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Limited Lifetime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson models. Verify suspension attachment points and overall bike configuration before ordering.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is Frequency Sensing Technology (FST)?\u003c\/h3\u003e\n\u003cp\u003eFST senses bump frequency and automatically adjusts damping oil flow in real time — small bumps get lighter damping, big hits get firmer support without manual adjustment.\u003c\/p\u003e\n\u003ch3\u003eCan I adjust the preload myself?\u003c\/h3\u003e\n\u003cp\u003eYes. A threaded adjuster cap on top lets you twist-adjust spring preload by hand — no special tools or compressor needed.\u003c\/p\u003e\n\u003ch3\u003eDo these come in different spring rates?\u003c\/h3\u003e\n\u003cp\u003eYes. Choose standard or heavy-duty spring rate depending on your weight, cargo, and riding style.\u003c\/p\u003e\n\u003ch3\u003eWhat finishes are available?\u003c\/h3\u003e\n\u003cp\u003eBlack or chrome. Both finishes use the same FST internals — your choice is purely aesthetic.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eProgressive includes a Limited Lifetime Warranty on all 444 Series shocks.\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":53040149626991,"sku":"T14-614104","price":860.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_cf848963-fe1a-43c0-9b00-fe2b61ae30a8.png?v=1779565623","url":"https:\/\/vtwinbikers.com\/products\/progressive-444-shocks-harley-davidson-10","provider":"Vtwinbikers","version":"1.0","type":"link"}