{"product_id":"progressive-412-shocks-harley-davidson-18","title":"Progressive 412 Shocks — Harley-Davidson","description":"\u003cp\u003eProgressive 412 Series shocks deliver suspension performance through doublewall steel construction and nitrogen-charged, multi-stage velocity-sensitive valving for smooth, consistent damping across varying road surfaces. A five-position cam preload adjuster lets riders tune for their weight and riding style without tools.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDoublewall steel damper body\u003c\/li\u003e\n  \u003cli\u003eHigh-pressure nitrogen gas charging\u003c\/li\u003e\n  \u003cli\u003eMulti-stage velocity-sensitive damping\u003c\/li\u003e\n  \u003cli\u003e5-position cam-style preload adjuster\u003c\/li\u003e\n  \u003cli\u003eProgressive or heavy-duty spring rates available\u003c\/li\u003e\n  \u003cli\u003eChrome or black finish options\u003c\/li\u003e\n  \u003cli\u003eShow 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 412-4037B\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 10.6 lbs\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 motorcycles. Verify application-specific fitment and spring rate before ordering to ensure correct configuration for your model.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eCan I adjust the preload myself without tools?\u003c\/h3\u003e\n\u003cp\u003eYes — the 5-position cam-style preload adjuster requires no tools and lets you dial in your ride based on rider weight and load.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between the standard and heavy-duty springs?\u003c\/h3\u003e\n\u003cp\u003eStandard springs suit lighter riders; heavy-duty springs are engineered for heavier riders or loaded touring to prevent bottoming.\u003c\/p\u003e\n\u003ch3\u003eAre the shocks available in chrome or black?\u003c\/h3\u003e\n\u003cp\u003eYes. Both chrome and black finishes are offered, and Show Chrome covers are available on select Harley applications.\u003c\/p\u003e\n\u003ch3\u003eHow often do I need to service these shocks?\u003c\/h3\u003e\n\u003cp\u003eProgressive nitrogen-charged shocks are sealed and require minimal maintenance. Inspect for leaks or damage annually and service per manufacturer guidelines.\u003c\/p\u003e\n\u003ch3\u003eWill these improve my stock suspension?\u003c\/h3\u003e\n\u003cp\u003eThe 412's doublewall steel construction, nitrogen charging, and velocity-sensitive valving provide firmer, more consistent damping than many factory 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":53040147464303,"sku":"T14-614005","price":379.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_be472040-7d34-49e7-acaf-463e28927329.png?v=1779566600","url":"https:\/\/vtwinbikers.com\/products\/progressive-412-shocks-harley-davidson-18","provider":"Vtwinbikers","version":"1.0","type":"link"}