{"product_id":"motorshop-12-1-2-inch-4-speed-transmission-mainshaft-for-harley-davidson-fl-models-1","title":"Motorshop 12.5 Inch 4-Speed Transmission Mainshaft For Harley Davidson FL Models","description":"\u003cdiv\u003e\n\u003ch1\u003eMotorshop 12-1\/2 Inch 4-Speed Transmission Mainshaft for Harley Davidson FL\u003c\/h1\u003e\n\u003cp\u003eThe Motorshop 12-1\/2 inch 4-speed transmission mainshaft replaces OEM part 35039-70 on Harley Davidson FL models. Measuring 12-1\/2 inches in length, it restores shifting function in the Big Twin 4-speed transmission without altering drivetrain geometry.\u003c\/p\u003e\n\u003cp\u003eMade in Taiwan, the shaft meets the dimensional standards required for 1970-1979 FL models and also fits the listed 1971-1984 FX models that share the same transmission layout. Its precise machining supports direct installation using existing bearings and gears.\u003c\/p\u003e\n\u003ch2\u003eCompatible models\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHarley Davidson FL 1970-1984\u003c\/li\u003e\n\u003cli\u003eHarley Davidson FX 1971-1984\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe mainshaft kit includes the 12.470-inch shaft and related 4-speed components needed for complete transmission service on these motorcycles. Its one-piece construction withstands repeated gear shifts under normal street and touring loads.4-speed Transmission mainshaft is 12-1\/2 inch long.\n\u003c\/p\u003e\n\u003cp\u003eUpgrade your Harley Davidson FL motorcycle with the Motorshop 12-1\/2 inch 4-Speed Transmission Mainshaft, designed for precise fit and reliable performance. Crafted in Taiwan, this mainshaft measures approximately 12-1\/2 inches in length, ensuring compatibility with a range of late 20th-century Harley Davidson FL models from 1970 to 1979. The mainshaft is engineered to meet OEM standards, providing a seamless replacement that maintains your motorcycle's shifting efficiency and drivetrain integrity. Its durable construction ensures longevity even under demanding riding conditions, making it an essential component for restoring or maintaining your transmission system.\u003cbr\u003eConstructed from high-quality materials, the Motorshop mainshaft features a robust design to withstand the rigors of motorcycle operation. The precise measurements and manufacturing standards guarantee a perfect fit, simplifying installation and ensuring optimal performance. Whether you're rebuilding your transmission or replacing a worn part, this mainshaft offers an excellent solution to keep your Harley running smoothly. Compatibility with various OEM parts makes it a versatile choice for mechanics and enthusiasts alike, enabling easy integration with existing components.\u003cbr\u003eIncluded with this mainshaft are accessory items such as the 12-1\/2 inch 4-Speed Transmission Mainshaft Kit, 12.470 inch mainshaft, Big Twin Mainshaft Assembly, and other related parts, providing comprehensive options for your repair or upgrade project. Trust the Motorshop brand for quality and reliability in maintaining your classic Harley Davidson motorcycle, ensuring your ride stays efficient and dependable for years to come.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eLength: 12-1\/2 inches, designed for Harley Davidson FL models from 1970 to 1979\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCountry of Origin: Taiwan, ensuring quality manufacturing standards\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eOEM Cross Reference: 35039-70 for compatibility and ease of replacement\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eDurable construction built to withstand demanding riding conditions\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003ePrecise fit and finish for seamless installation and optimal performance\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eIncludes accessory items for comprehensive repair and upgrade options\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson FL 1970\u003cbr\u003e\nHarley Davidson FL 1971\u003cbr\u003e\nHarley Davidson FL 1972\u003cbr\u003e\nHarley Davidson FL 1973\u003cbr\u003e\nHarley Davidson FL 1974\u003cbr\u003e\nHarley Davidson FL 1975\u003cbr\u003e\nHarley Davidson FL 1976\u003cbr\u003e\nHarley Davidson FL 1977\u003cbr\u003e\nHarley Davidson FL 1978\u003cbr\u003e\nHarley Davidson FL 1979\u003cbr\u003e\nHarley Davidson FL 1980\u003cbr\u003e\nHarley Davidson FL 1981\u003cbr\u003e\nHarley Davidson FL 1982\u003cbr\u003e\nHarley Davidson FL 1983\u003cbr\u003e\nHarley Davidson FL 1984\u003cbr\u003e\nHarley Davidson FX 1971\u003cbr\u003e\nHarley Davidson FX 1972\u003cbr\u003e\nHarley Davidson FX 1973\u003cbr\u003e\nHarley Davidson FX 1974\u003cbr\u003e\nHarley Davidson FX 1975\u003cbr\u003e\nHarley Davidson FX 1976\u003cbr\u003e\nHarley Davidson FX 1977\u003cbr\u003e\nHarley Davidson FX 1978\u003cbr\u003e\nHarley Davidson FX 1979\u003cbr\u003e\nHarley Davidson FX 1980\u003cbr\u003e\nHarley Davidson FX 1981\u003cbr\u003e\nHarley Davidson FX 1982\u003cbr\u003e\nHarley Davidson FX 1983\u003cbr\u003e\nHarley Davidson FX 1984\u003c\/div\u003e","brand":"Motorshop","offers":[{"title":"Default Title","offer_id":44650948984874,"sku":"17-0141","price":103.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/17-0141a.jpg?v=1785828696","url":"https:\/\/atticusgoods.com\/products\/motorshop-12-1-2-inch-4-speed-transmission-mainshaft-for-harley-davidson-fl-models-1","provider":"Atticus Goods","version":"1.0","type":"link"}