{"product_id":"progressive-412-shocks-harley-davidson-91","title":"Progressive 412 Shocks — Harley-Davidson","description":"\u003cp\u003eProgressive 412 shocks deliver consistent damping performance with a durable double-wall steel body and nitrogen-charged, multi-stage velocity-sensitive valving. The five-position cam preload adjuster lets you tune for your weight and riding style, making these a practical suspension upgrade for Harley-Davidson models.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-wall steel damper body\u003c\/li\u003e\n  \u003cli\u003eNitrogen-charged for consistent damping\u003c\/li\u003e\n  \u003cli\u003eMulti-stage velocity-sensitive valving\u003c\/li\u003e\n  \u003cli\u003e5-position cam-style preload adjuster\u003c\/li\u003e\n  \u003cli\u003eProgressive-rate spring options in chrome or black\u003c\/li\u003e\n  \u003cli\u003eOptional show chrome covers available on select models\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 412-4071B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 9.5 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\u003eProp 65 Warning:\u003c\/strong\u003e California Prop 65 — Cancer and Reproductive Harm. 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 exact year and model with Progressive or your dealer to verify correct spring rate and application.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eCan I adjust the preload myself?\u003c\/h3\u003e\n\u003cp\u003eYes — the 5-position cam-style preload adjuster allows you to dial in damping for your weight and riding conditions without tools.\u003c\/p\u003e\n\u003ch3\u003eDo these come with chrome covers?\u003c\/h3\u003e\n\u003cp\u003eStandard 412s ship without covers. Optional show chrome covers are available on select applications — verify availability for your model.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between standard and heavy-duty springs?\u003c\/h3\u003e\n\u003cp\u003eHeavy-duty springs provide a stiffer rate for heavier riders or carrying passengers regularly. Standard springs work well for average-weight riders.\u003c\/p\u003e\n\u003ch3\u003eAre these shocks rebuildable or user-serviceable?\u003c\/h3\u003e\n\u003cp\u003eThese are sealed cartridge shocks designed for the life of the motorcycle. Internal service should be handled by a suspension specialist if needed.\u003c\/p\u003e\n\u003ch3\u003eWill these improve my ride comfort?\u003c\/h3\u003e\n\u003cp\u003eYes — the nitrogen charge and multi-stage damping provide smoother, more consistent performance than many stock suspensions across road surface variations.\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":53040157851759,"sku":"T14-669171","price":379.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_047dac8f-cb94-4ce3-b9f3-0a4048c4637f.png?v=1779565755","url":"https:\/\/vtwinbikers.com\/products\/progressive-412-shocks-harley-davidson-91","provider":"Vtwinbikers","version":"1.0","type":"link"}