{"product_id":"progressive-fork-cartridge-kits-harley-davidson-1","title":"Progressive Fork Cartridge Kits — Harley-Davidson","description":"\u003cp\u003eProgressive Suspension fork cartridge kit replaces OEM fork internals with gas-charged monotube damper cartridges and custom-tuned springs to reduce brake dive, improve stability, and enhance cornering control. Available in stock and lowered ride-height versions to suit your bike's geometry and riding style.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eGas-charged monotube damper cartridges\u003c\/li\u003e\n  \u003cli\u003eCustom-tuned fork springs in stock and lowered versions\u003c\/li\u003e\n  \u003cli\u003eReduces front-end brake dive\u003c\/li\u003e\n  \u003cli\u003eImproves cornering stability\u003c\/li\u003e\n  \u003cli\u003eImproves bottoming control\u003c\/li\u003e\n  \u003cli\u003eLifetime Limited 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 31-4004\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Suspension \/ Fork Cartridge Kits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 9.7 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 fork cartridge compatibility varies by generation.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this reduce brake dive when I hit the brakes hard?\u003c\/h3\u003e\n\u003cp\u003eYes — the gas-charged monotube design resists compression during hard braking, keeping the front end up.\u003c\/p\u003e\n\u003ch3\u003eDo I get a choice of ride heights?\u003c\/h3\u003e\n\u003cp\u003eYes. You can order stock height or lowered springs depending on your preference and bike geometry.\u003c\/p\u003e\n\u003ch3\u003eIs professional installation required?\u003c\/h3\u003e\n\u003cp\u003eFork cartridge installation requires disassembly of the fork legs and internal work. Many riders use a suspension shop for proper setup and tuning.\u003c\/p\u003e\n\u003ch3\u003eDoes this kit include everything needed?\u003c\/h3\u003e\n\u003cp\u003eThe kit includes damper cartridges and springs. You'll reuse your existing fork legs and hardware.\u003c\/p\u003e\n\u003ch3\u003eWhat's covered by the warranty?\u003c\/h3\u003e\n\u003cp\u003eProgressive offers a Lifetime Limited Warranty on manufacturing defects. See the warranty documentation for terms and conditions.\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":53040366714991,"sku":"T14-613980","price":2147000.0,"currency_code":"COP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/dc8be224fe57664f8825616d4f34e454L.jpg?v=1777657500","url":"https:\/\/vtwinbikers.com\/en-co\/products\/progressive-fork-cartridge-kits-harley-davidson-1","provider":"Vtwinbikers","version":"1.0","type":"link"}