{"product_id":"progressive-412-shocks-harley-davidson-64","title":"Progressive 412 Shocks — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)","description":"\u003cp\u003eProgressive 412 Series shocks deliver consistent damping for Harley-Davidson cruisers through nitrogen-charged, velocity-sensitive valving in a double-wall steel body. A five-position preload adjuster lets you customize the ride for your weight and riding style without tools.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble-wall steel damper construction\u003c\/li\u003e\n  \u003cli\u003eHigh-pressure nitrogen gas charge\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\u003eAvailable in standard or heavy-duty progressive springs\u003c\/li\u003e\n  \u003cli\u003eChrome or black finish options\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 412-4009B\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 9.9 lb\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWARNING:\u003c\/strong\u003e Cancer and Reproductive Harm — California Prop 65\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson cruiser models. Verify your specific model year and frame type before ordering to ensure compatibility.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I need to adjust the preload when I install these shocks?\u003c\/h3\u003e\n\u003cp\u003eYes — use the 5-position cam adjuster to dial preload for your body weight and riding style. Light riders use lower positions; heavier riders benefit from stiffer settings.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between standard and heavy-duty spring rates?\u003c\/h3\u003e\n\u003cp\u003eHeavy-duty springs provide more support for heavier riders or carrying a passenger. Standard springs suit lighter riders and solo touring.\u003c\/p\u003e\n\u003ch3\u003eCan I get these in chrome?\u003c\/h3\u003e\n\u003cp\u003eYes — the shocks are available in chrome, black, or with optional Show Chrome covers on select Harley models.\u003c\/p\u003e\n\u003ch3\u003eAre these shocks rebuildable?\u003c\/h3\u003e\n\u003cp\u003eThese are sealed cartridge units. When they wear out, replacement is the recommended service.\u003c\/p\u003e\n\u003ch3\u003eWill these improve my ride compared to stock shocks?\u003c\/h3\u003e\n\u003cp\u003eYes — the velocity-sensitive damping and nitrogen charge provide smoother, more consistent performance than most OEM Harley 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":53040155918447,"sku":"T14-669140","price":379.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_3e94a41a-a67f-46bb-a4e7-ee4278393bd1.png?v=1779565737","url":"https:\/\/vtwinbikers.com\/products\/progressive-412-shocks-harley-davidson-64","provider":"Vtwinbikers","version":"1.0","type":"link"}