{"product_id":"sealed-inner-primary-bearing-upgrade-kit-fits-5spd-big-twin-1985-2006","title":"Sealed Inner Primary Bearing Upgrade Kit. Fits 5Spd Big Twin 1985-2006","description":"\u003cp\u003eThe 34091-85 inner bearing race has been used on Big Twins since 1985. The inner primary bearing rides on this race. By design, this race press-fits onto the transmission mainshaft. This system works fine for stock engines. 100 HP+ engines will make this bearing walk on the mainshaft. If it walks inboard, it will damage the maindrive gear seal and cause a transmission oil leak. If it walks outboard, it will cause a primary oil leak. Our high torque bearing kit eliminates this condition. Kit includes a precision honed bearing, Seal \u0026amp; One (1) Circlip\u003c\/p\u003e\n\u003cp\u003eTech Tips:-\u003c\/p\u003e\n\u003cp\u003e* Fits 1985 - 2006 and early 2007 models with 25mm mainshafts. \u003c\/p\u003e\n\u003cp\u003e* Will NOT fit late 2007 - early 2008 with 24.8 mm mainshaft.\u003c\/p\u003e\n\u003cp\u003e* Only fits models with (2) two Original Circlips ie. One(1) either side of the original bearing.\u003c\/p\u003e","brand":"Jims","offers":[{"title":"Default Title","offer_id":48440316592350,"sku":"JM-8960","price":86.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1021\/7951\/files\/JM-8960.jpg?v=1784190620","url":"https:\/\/ironandresin.com.au\/products\/sealed-inner-primary-bearing-upgrade-kit-fits-5spd-big-twin-1985-2006","provider":"Iron \u0026 Resin Garage","version":"1.0","type":"link"}