{"product_id":"progressive-412-shocks-harley-davidson-1","title":"Progressive 412 Shocks — Harley-Davidson","description":"\u003cp\u003eProgressive 412 Series shocks deliver suspension performance at an accessible price point, with durable double-wall steel construction and nitrogen gas charging for consistent damping across all riding conditions. Five-position preload adjustment lets you tune for your weight and riding style, and multiple spring rates and finishes fit most 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\u003eMulti-stage velocity sensitive damping\u003c\/li\u003e\n  \u003cli\u003eHigh-pressure nitrogen gas charged\u003c\/li\u003e\n  \u003cli\u003e5-position cam-style preload adjuster\u003c\/li\u003e\n  \u003cli\u003eStandard and Heavy-Duty progressive rate spring options\u003c\/li\u003e\n  \u003cli\u003eAvailable in chrome or black finish\u003c\/li\u003e\n  \u003cli\u003eOptional show chrome covers 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 412-4004B\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 10.4 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWARNING:\u003c\/strong\u003e Cancer and Reproductive Harm — California Prop 65. www.P65Warnings.ca.gov\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson models. Verify your specific year and model before ordering, as spring rates and geometry vary by platform.\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 adjuster lets you dial preload up or down without tools — ideal for tuning to rider weight or load.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between Standard and Heavy-Duty springs?\u003c\/h3\u003e\n\u003cp\u003eHeavy-Duty springs suit heavier riders or those carrying passenger and luggage. Standard springs work for lighter riders and solo use.\u003c\/p\u003e\n\u003ch3\u003eAre these shocks valved for street riding or track use?\u003c\/h3\u003e\n\u003cp\u003eThese are street-tuned shocks with multi-stage velocity sensitive damping for smooth, controlled ride quality on public roads.\u003c\/p\u003e\n\u003ch3\u003eDo these come with chrome covers?\u003c\/h3\u003e\n\u003cp\u003eStandard models ship without show chrome covers. Optional full chrome covers are available on select applications — check fitment before ordering.\u003c\/p\u003e\n\u003ch3\u003eWill these improve my bike's handling?\u003c\/h3\u003e\n\u003cp\u003eYes. The nitrogen gas charge and multi-stage valving reduce bottoming and harshness compared to worn OEM shocks, improving stability and comfort.\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":53040145432687,"sku":"T14-613987","price":379.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_142001f6-f06e-46ad-9016-bc9840a1a9f6.png?v=1779565684","url":"https:\/\/vtwinbikers.com\/products\/progressive-412-shocks-harley-davidson-1","provider":"Vtwinbikers","version":"1.0","type":"link"}