{"product_id":"fsa-no-55r-1-5-acr-ls-fully-integrated-acr-headset","title":"FSA ACR \/ SMR  ⌀52mm Headset System (45mm Spacers + SMR Adapter)","description":"\u003cp\u003e\u003cspan\u003eFSA No. 55R 1.5” ACR LS integrated headset with fully hidden cable routing, no rotation limit, and angular contact bearings—designed to work with the Zeppelin Mk. IV and Zeppelin Mk. V road frames (2026-2027). Fits 55.8mm OD head tubes and 1-1\/8” to 1.5” tapered forks. Set includes 45mm of spacers and SMR conversion adapter for standard FSA \/ SMR bar and stem combinations\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline;\"\u003eIncludes: \u003c\/span\u003e\u003cbr\u003e1 x FSA 55R Headset ⌀52mm Bearing 1-1\/8\"\/ 1.5\", 36°\/ 45° ACB\u003cbr\u003e3 x 10mm FSA Carbon Split Washers (30mm)\u003cbr\u003e3 x 5mm FSA Carbon Split Washers (15mm)\u003cbr\u003e1 x FSA Spacer \/ Adapter SMR TO ACR\u003cbr\u003e1 x Fork Compression Plug\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Airborne Bicycle Co.","offers":[{"title":"Default Title","offer_id":41301680652346,"sku":null,"price":6200.0,"currency_code":"ISK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1067\/3142\/files\/fsa-no-55r-headset-acr-3mm-tapered-1985810.jpg?v=1774273636","url":"https:\/\/www.airborne.bike\/en-is\/products\/fsa-no-55r-1-5-acr-ls-fully-integrated-acr-headset","provider":"Airborne Bicycle Co.","version":"1.0","type":"link"}