{"product_id":"hayden-primary-chain-tensioner-sportsters-39-1204","title":"Hayden Primary Chain Tensioner - Sportsters — Harley-Davidson Sportster 1200 Custom, Sportster 883, Sportster 883 Hugger (1972-2026)","description":"\u003cp\u003eHayden primary chain tensioner for Sportster V-twin motorcycles that automatically maintains proper chain tension during acceleration and deceleration. Smoother shifts, quieter transmission engagement, and a noticeably smoother ride compared to manual adjusters or worn stock tensioners.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomatic tension adjustment during riding\u003c\/li\u003e\n  \u003cli\u003eReduces transmission clunk on acceleration and deceleration\u003c\/li\u003e\n  \u003cli\u003eSmoother shifting and transmission engagement\u003c\/li\u003e\n  \u003cli\u003eMaintains consistent primary chain tension\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 Hayden\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e M6-XL5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 4.45 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 7 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 2.25 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9769 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycles including Harley-Davidson Sportsters.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eHow does this differ from a manual chain tensioner?\u003c\/h3\u003e\n\u003cp\u003eThis tensioner automatically adjusts tension as you ride, eliminating the need for manual adjustment and maintaining smooth engagement through throttle and engine load changes.\u003c\/p\u003e\n\u003ch3\u003eWill I notice a difference in how the bike shifts?\u003c\/h3\u003e\n\u003cp\u003eYes — the transmission will shift with a smooth engagement instead of a clunk, and the overall ride feel is noticeably smoother.\u003c\/p\u003e\n\u003ch3\u003eIs this a direct bolt-on replacement?\u003c\/h3\u003e\n\u003cp\u003eYes — it installs in place of the stock primary chain tensioner without modifications to the primary cover or case.\u003c\/p\u003e\n\u003ch3\u003eDoes this require any tuning or adjustment after installation?\u003c\/h3\u003e\n\u003cp\u003eNo special tuning needed. Once installed, it automatically maintains proper chain tension during all riding conditions.\u003c\/p\u003e","brand":"Hayden","offers":[{"title":"Default Title","offer_id":53035043455087,"sku":"39-1204","price":115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_52a60bf6-66c6-4ad7-a7fe-f9d2a7dab712.png?v=1779560768","url":"https:\/\/vtwinbikers.com\/products\/hayden-primary-chain-tensioner-sportsters-39-1204","provider":"Vtwinbikers","version":"1.0","type":"link"}