{"product_id":"vintage-big-twin-hardtail-frame-harley","title":"VINTAGE BIG TWIN HARDTAIL FRAME Harley-Knucklehead\/Panhead\/Shovelhead","description":"\u003cdiv\u003e\u003cspan\u003eDesigned for custom motorcycle builders, this frame platform supports selected \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e1936-1947 Knucklehead \/ 1948-1965 Panhead \/ 1966-1984 Shovelhead \u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003econfigurations through dedicated engine mounts, transmission bases, \u003c\/span\u003e\u003cspan\u003eand drivetrain components. \u003c\/span\u003e\u003cspan\u003eBuilt for Bobber, Chopper, and vintage custom motorcycle projects, \u003c\/span\u003e\u003cspan\u003eit combines classic styling with modern manufacturing, precision fixtures, \u003c\/span\u003e\u003cspan\u003ehand welding, and complete chassis development capability.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e1. Compatible engine: \u003c\/strong\u003e1936-1947 Knucklehead\/1948-1965 Panhead\/1966-1984 Shovelhead  \u003cbr\u003e\u003cstrong\u003e2. Frame outer dimensions:\u003c\/strong\u003e Length: 1349.39mm; Height: 750.07mm; Width: 354.48mm  \u003cbr\u003e\u003cstrong\u003e3. Main pipe diameter ：\u003c\/strong\u003e38.1mm, material Q235  \u003cbr\u003e\u003cstrong\u003e4. Frame compatible rear wheel: \u003c\/strong\u003ediameter 18inch, maximum 140MM, width 30 degrees  \u003cbr\u003e\u003cstrong\u003e5. Main pipe wall thickness：\u003c\/strong\u003e 3mm, some parts have a wall thickness of 2.5mm\u003c\/div\u003e","brand":"ThunderCustomParts","offers":[{"title":"灰色","offer_id":50409769894128,"sku":null,"price":1900.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/8105\/2656\/files\/ChatGPT_Image_2026_9_9_13_00_42_3.png?v=1788930084","url":"https:\/\/thundercustom.myshopify.com\/es\/products\/vintage-big-twin-hardtail-frame-harley","provider":"ThunderCustomParts","version":"1.0","type":"link"}