{"product_id":"progressive-fork-cartridge-kits-harley-davidson-3","title":"Progressive Fork Cartridge Kit - Harley-Davidson","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout Progressive\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003eProgressive Suspension has focused exclusively on American V-twin suspension since 1982, and its Monotube fork cartridges and 400\/970\/970G shock series are among the most common upgrades on baggers and Softails. For most riders the stock rear shock is the single worst part on the bike — this is the fix.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eTransform your Harley-Davidson's front suspension with a Progressive Fork Cartridge Kit. This comprehensive upgrade replaces all OEM fork internals, delivering a significant improvement in handling, stability, and braking performance. Experience a more controlled and confident ride, whether you're cruising or pushing the limits.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003eReplaces all OEM fork internals for a complete upgrade\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eGas-charged monotube damper cartridges for consistent performance\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eCustom-tuned fork springs in stock and lowered versions\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eReduces front brake dive and improves stability\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eEnhances cornering and bottoming control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Progressive Fork Cartridge Kit completely revamps your motorcycle's front end by replacing the stock components with advanced gas-charged monotube damper cartridges and custom-tuned fork springs. This engineered solution is designed to eliminate common complaints like excessive brake dive and vague front-end feel, providing a plush yet controlled ride across various road conditions.\u003c\/p\u003e\u003ch3\u003eEnhanced Control and Stability\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGas-charged monotube damper cartridges provide consistent damping\u003c\/li\u003e\n\u003cli\u003eCustom-tuned fork springs available for stock and lowered ride heights\u003c\/li\u003e\n\u003cli\u003eReduces front brake dive for more stable stopping power\u003c\/li\u003e\n\u003cli\u003eImproves front-end stability and cornering precision\u003c\/li\u003e\n\u003cli\u003eOffers better bottoming control on rough roads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDial In Your Ride\u003c\/h3\u003e\u003cp\u003eWhether you prefer the factory ride height or a lowered stance, this kit offers options to match your setup. The improved damping and spring rates work together to give you a more predictable and responsive front end, making every ride more enjoyable and confidence-inspiring. Consult your service manual or a professional for installation, ensuring proper setup for your specific Harley-Davidson model.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\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 31-4011\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 12.7 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\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eDo I need to replace the entire fork, or just the internals?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eJust the internals — this kit replaces damper cartridges and springs while reusing your existing fork tubes and sliders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWill this reduce my front brake dive?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eYes, the engineered design of these cartridges and springs is specifically intended to reduce front brake dive, improving stability during braking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eIs this kit available for a lowered ride height?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eYes, Progressive Fork Cartridge Kits are available in both stock and lowered ride-height versions to suit your preferred setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Fork Cartridge Kits\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Progressive\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/progressive\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Progressive Fork Cartridge Kit - Harley-Davidson\",\"item\":\"https:\/\/vtwinbikers.com\/products\/progressive-fork-cartridge-kits-harley-davidson-3\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Do I need to replace the entire fork, or just the internals?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Just the internals — this kit replaces damper cartridges and springs while reusing your existing fork tubes and sliders.\"}},{\"@type\":\"Question\",\"name\":\"Will this reduce my front brake dive?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, the engineered design of these cartridges and springs is specifically intended to reduce front brake dive, improving stability during braking.\"}},{\"@type\":\"Question\",\"name\":\"Is this kit available for a lowered ride height?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes, Progressive Fork Cartridge Kits are available in both stock and lowered ride-height versions to suit your preferred setup.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Progressive","offers":[{"title":"Default Title","offer_id":53040367042671,"sku":"T14-669283","price":632.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_ee9e51c4-3b84-47bb-a385-f142688a9a58.png?v=1779566238","url":"https:\/\/vtwinbikers.com\/products\/progressive-fork-cartridge-kits-harley-davidson-3","provider":"Vtwinbikers","version":"1.0","type":"link"}