{"product_id":"hayden-primary-chain-tensioner-big-twins-39-1208","title":"Hayden Primary Chain Tensioner - BIG Twins — Harley-Davidson Road King Special, Tri Glide Ultra Classic, Electra Glide Ultra Limited (2017-2023)","description":"\u003cp\u003eHayden primary chain tensioner for Big Twin V-twin motorcycles, automatically maintains proper primary chain tension during acceleration and deceleration. Reduces transmission clunk and delivers a smoother, quieter ride without manual adjustment.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomatic tension adjustment\u003c\/li\u003e\n  \u003cli\u003eMaintains tension during acceleration and deceleration\u003c\/li\u003e\n  \u003cli\u003eReduces transmission noise and clunk\u003c\/li\u003e\n  \u003cli\u003eSmoother shifting feel\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 M6BT17M8\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 1.6 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin Big Twin motorcycles, including Harley-Davidson and Indian Motorcycle models.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I need to manually adjust primary chain tension with this installed?\u003c\/h3\u003e\n\u003cp\u003eNo — the Hayden tensioner automatically maintains proper tension as you accelerate and decelerate, eliminating manual adjustments.\u003c\/p\u003e\n\u003ch3\u003eWill this stop my transmission from clunking?\u003c\/h3\u003e\n\u003cp\u003eYes. Proper primary chain tension reduces the clunk and click noise on downshifts and acceleration.\u003c\/p\u003e\n\u003ch3\u003eIs installation difficult?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires removing the primary cover and routing the tensioner into position. Most riders have this done at a shop, though experienced DIYers can complete it in an afternoon.\u003c\/p\u003e\n\u003ch3\u003eDoes this fit Indian Motorcycles?\u003c\/h3\u003e\n\u003cp\u003eYes — this tensioner is compatible with V-twin Big Twin platforms used in both Harley-Davidson and Indian motorcycles.\u003c\/p\u003e\n\u003ch3\u003eWill my bike ride smoother after installation?\u003c\/h3\u003e\n\u003cp\u003eYes. Proper primary chain tension reduces vibration and noise, delivering a noticeably smoother feel during normal riding.\u003c\/p\u003e","brand":"Hayden","offers":[{"title":"Default Title","offer_id":53035770871919,"sku":"39-1208","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_b9b3eb64-1d03-4338-a77e-601a27947a7b.png?v=1779562961","url":"https:\/\/vtwinbikers.com\/products\/hayden-primary-chain-tensioner-big-twins-39-1208","provider":"Vtwinbikers","version":"1.0","type":"link"}