{"product_id":"progressive-444-shocks-harley-davidson-5","title":"Progressive 444 Shocks — Harley-Davidson","description":"\u003cp\u003eProgressive 444 Series shocks use patented Frequency Sensing Technology (FST) to dynamically adjust damping in real time as you ride over bumps, delivering a compliant ride whether hitting small chop or large obstacles. Hand-adjustable spring preload and available in standard or heavy-duty rates 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 valving\u003c\/li\u003e\n  \u003cli\u003eProgressive rate spring\u003c\/li\u003e\n  \u003cli\u003eHand-adjustable spring 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 444-4021B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 8.7 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Suspension \/ Shocks and Struts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWARNING:\u003c\/strong\u003e Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson models. Confirm your specific year and frame style with Progressive's fitment chart 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 sensors detect bump frequency and automatically route oil through internal ports to adjust damping — stiff for quick impacts, soft for low-frequency sag.\u003c\/p\u003e\n\u003ch3\u003eCan I adjust the spring preload without tools?\u003c\/h3\u003e\n\u003cp\u003eYes — the top-mounted threaded preload adjuster twists by hand to fine-tune ride height and spring tension.\u003c\/p\u003e\n\u003ch3\u003eShould I choose standard or heavy-duty spring rate?\u003c\/h3\u003e\n\u003cp\u003eStandard suits stock weight riders and two-up cruising. Heavy-duty is for heavier riders or extra cargo. Progressive can help match your weight.\u003c\/p\u003e\n\u003ch3\u003eIs this a bolt-on replacement for stock shocks?\u003c\/h3\u003e\n\u003cp\u003eYes — 444 shocks bolt directly into your Harley's frame mounts without additional modifications or brackets.\u003c\/p\u003e\n\u003ch3\u003eWhat warranty comes with these shocks?\u003c\/h3\u003e\n\u003cp\u003eLimited Lifetime Warranty covers manufacturer defects. Made in the USA.\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":53040148840559,"sku":"T14-614098","price":860.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_0e7edcb9-c819-4d5b-af4f-3fe735922441.png?v=1779565574","url":"https:\/\/vtwinbikers.com\/products\/progressive-444-shocks-harley-davidson-5","provider":"Vtwinbikers","version":"1.0","type":"link"}