{"product_id":"marin-alcatraz-frame-kit-2026","title":"Alcatraz Frame Kit 2026","description":"\u003cp\u003eThe Marin Alcatraz is a pro-level dirt jump bike designed for pump tracks, trail jumps and skatepark sessions. Fast, tough and low-maintenance, it’s built for riders who want maximum boost with minimal fuss. Available here as a frameset for your own custom builds.\u003c\/p\u003e\n\u003cp\u003eContact us at support@biketart.com to discuss components or to arrange a full custom build\u003c\/p\u003e\n\u003cp data-start=\"1503\" data-end=\"1530\"\u003e\u003cstrong\u003eKey features \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1532\" data-end=\"1922\"\u003e\n\u003cli data-start=\"1532\" data-end=\"1606\"\u003e\n\u003cp data-start=\"1534\" data-end=\"1606\"\u003e\u003cstrong data-start=\"1534\" data-end=\"1567\"\u003eSeries 3 6061 Aluminium Frame\u003c\/strong\u003e – Lightweight, strong and jump-ready\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1607\" data-end=\"1676\"\u003e\n\u003cp data-start=\"1609\" data-end=\"1676\"\u003e\u003cstrong data-start=\"1609\" data-end=\"1635\"\u003eInternal Cable Routing\u003c\/strong\u003e – Clean looks and reduced cable rattle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1677\" data-end=\"1738\"\u003e\n\u003cp data-start=\"1679\" data-end=\"1738\"\u003e\u003cstrong data-start=\"1679\" data-end=\"1706\"\u003e73mm BSA Bottom Bracket\u003c\/strong\u003e – Durable and easy to service\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1739\" data-end=\"1854\"\u003e\n\u003cp data-start=\"1741\" data-end=\"1854\"\u003e\u003cstrong data-start=\"1741\" data-end=\"1797\"\u003eHorizontal Dropouts with Integrated Chain Tensioners\u003c\/strong\u003e – Simple chain setup and secure rear wheel positioning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1855\" data-end=\"1922\"\u003e\n\u003cp data-start=\"1857\" data-end=\"1922\"\u003e\u003cstrong data-start=\"1857\" data-end=\"1873\"\u003eISCG 05 Tabs\u003c\/strong\u003e – Chain guide compatible for aggressive riding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSIZING - \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1966\" data-end=\"2085\"\u003eThe Alcatraz 1 is available in Short and Long frame options, so you can choose the ride feel that suits your style:\u003c\/p\u003e\n\u003cul data-start=\"2087\" data-end=\"2259\"\u003e\n\u003cli data-start=\"2087\" data-end=\"2164\"\u003e\n\u003cp data-start=\"2089\" data-end=\"2164\"\u003e\u003cstrong data-start=\"2089\" data-end=\"2104\"\u003eShort Frame\u003c\/strong\u003e – Responsive and playful, ideal for riders with BMX roots\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2165\" data-end=\"2259\"\u003e\n\u003cp data-start=\"2167\" data-end=\"2259\"\u003e\u003cstrong data-start=\"2167\" data-end=\"2181\"\u003eLong Frame\u003c\/strong\u003e – More stable at speed and better suited to riders 5’11” (180cm) and taller\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPECIFICATION - \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFrame -\u003c\/strong\u003e Series 3 6061 Aluminium, 26” Wheels, 135x10mm Horizontal Dropouts, 73mm Threaded BB, ISCG 05 Tabs\u003cbr\u003e\u003cstrong\u003eHeadset -\u003c\/strong\u003e FSA No 57E, Semi-Sealed Cartridge Bearings, 1 1\/8\" x 1 1\/2”\u003c\/p\u003e","brand":"Marin","offers":[{"title":"Red\/Purple \/ Short","offer_id":56375421043062,"sku":"741544001","price":649.0,"currency_code":"GBP","in_stock":true},{"title":"Red\/Purple \/ Long","offer_id":56375421075830,"sku":"741544002","price":649.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/3065\/6691\/files\/alcatraz-frame-kit-2026-red-purple-short-1234782947.jpg?v=1777466530","url":"https:\/\/www.biketart.com\/products\/marin-alcatraz-frame-kit-2026","provider":"Biketart","version":"1.0","type":"link"}