{"product_id":"bel-ray-big-twin-transmission-oil-85w140-6gal-bib-840-1583","title":"Bel-Ray Big Twin Transmission Oil - 85w140 6gal BIB","description":"\u003cp\u003eBel-Ray Big Twin Transmission Oil 85w140 is a full synthetic gear oil formulated for Harley-Davidson and Indian Motorcycle transmissions and final drives with separate lubrication systems. Delivers wear protection, reduces gear noise, and improves shift quality in air-cooled and liquid-cooled Big Twin engines.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eFormulated for separate transmission and final drive systems\u003c\/li\u003e\n  \u003cli\u003eAPI GL-5 specification\u003c\/li\u003e\n  \u003cli\u003eWear protection extends gear life\u003c\/li\u003e\n  \u003cli\u003eReduces gear whine and improves shifting smoothness\u003c\/li\u003e\n  \u003cli\u003eSuitable for air-cooled and liquid-cooled Big Twin transmissions\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 Bel-Ray\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 301828150033\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 690509408522\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eViscosity:\u003c\/strong\u003e 85w140\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 6 gallons BIB (Bag-in-Box)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 45 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 18 in L x 7 in W x 13 in H\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycles with separate transmission and final drive lubrication systems, including Harley-Davidson and Indian Motorcycle Big Twin models.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat does API GL-5 mean?\u003c\/h3\u003e\n\u003cp\u003eGL-5 is the American Petroleum Institute's highest gear oil specification, formulated for high-pressure differentials and demanding gear trains like motorcycle transmissions.\u003c\/p\u003e\n\u003ch3\u003eCan I use this in both transmission and final drive?\u003c\/h3\u003e\n\u003cp\u003eYes — Bel-Ray Big Twin is designed for both the transmission and final drive on motorcycles with separate lubrication systems.\u003c\/p\u003e\n\u003ch3\u003eIs this synthetic or mineral oil?\u003c\/h3\u003e\n\u003cp\u003eThis is a full synthetic formula engineered for longer oil life and better protection in V-twin engines compared to conventional gear oils.\u003c\/p\u003e\n\u003ch3\u003eWill this quiet my transmission whine?\u003c\/h3\u003e\n\u003cp\u003eBel-Ray's formulation is designed to reduce gear noise and provide smoother shifting, though some gear whine is normal in any motorcycle transmission.\u003c\/p\u003e\n\u003ch3\u003eHow much oil does my Big Twin transmission hold?\u003c\/h3\u003e\n\u003cp\u003eTransmission capacity varies by model year and engine type. Consult your service manual or contact a Harley or Indian dealer for your specific bike's capacity.\u003c\/p\u003e","brand":"Bel-Ray","offers":[{"title":"Default Title","offer_id":53035980030063,"sku":"840-1583","price":281.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_a8d1d426-acfb-4d83-979d-05b9169a651b.png?v=1779563959","url":"https:\/\/vtwinbikers.com\/products\/bel-ray-big-twin-transmission-oil-85w140-6gal-bib-840-1583","provider":"Vtwinbikers","version":"1.0","type":"link"}