{"product_id":"fsa-headset-no-57-55e-1-1-1-8-alu-cups-check-not-same-as-fsa-n-57e-aluminium-headset-15mm-alloy-1-1-8-to-1-5","title":"FSA Headset No.57\/55E-1 1-1\/8\" Aluminium Cups OE","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot qMYqUG_convSearchResultTextHighlightSafari\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-WEB:f8e1bef6-9a7d-4200-8d2e-7706e57f132c-2\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:f8e1bef6-9a7d-4200-8d2e-7706e57f132c-2\" data-turn-id-container=\"request-WEB:f8e1bef6-9a7d-4200-8d2e-7706e57f132c-2\" data-testid=\"conversation-turn-6\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"e8bbd680-406b-4dbd-a998-3c2d84860a94\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cbr\u003e\n\u003cp data-start=\"53\" data-end=\"103\"\u003eA proper FSA headset without the fancy retail box.\u003c\/p\u003e\n\u003cp data-start=\"53\" data-end=\"103\"\u003e\u003cstrong\u003eCOMES WITHOUT TOPCAP AND BOLT\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"105\" data-end=\"203\"\u003eOEM supplied, so you get the headset, not acres of cardboard you'll throw away five minutes later.\u003c\/p\u003e\n\u003cp data-start=\"205\" data-end=\"523\"\u003eThe FSA No.57\/55E-1 is a Zero Stack (semi-integrated) headset with forged aluminium cups and sealed angular contact bearings for smooth, reliable steering. It's designed for frames with a tapered 44\/56 mm head tube while allowing the use of a standard 1-1\/8\" straight steerer fork via the supplied reducing crown race.\u003c\/p\u003e\n\u003cp data-start=\"525\" data-end=\"667\"\u003eFSA headsets have been fitted to countless complete bikes over the years for one simple reason: they work. Fit it, adjust it, forget about it.\u003c\/p\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"669\" data-end=\"681\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"683\" data-end=\"904\"\u003e\n\u003cli data-section-id=\"3e5kpd\" data-start=\"683\" data-end=\"700\"\u003eOEM FSA headset\u003c\/li\u003e\n\u003cli data-section-id=\"er5hun\" data-start=\"701\" data-end=\"738\"\u003eZero Stack (semi-integrated) design\u003c\/li\u003e\n\u003cli data-section-id=\"nsm5k3\" data-start=\"739\" data-end=\"762\"\u003eForged aluminium cups\u003c\/li\u003e\n\u003cli data-section-id=\"1sqx3h7\" data-start=\"763\" data-end=\"817\"\u003eSealed angular contact bearings for smooth operation\u003c\/li\u003e\n\u003cli data-section-id=\"601moh\" data-start=\"818\" data-end=\"857\"\u003eCompatible with straight 1-1\/8\" forks\u003c\/li\u003e\n\u003cli data-section-id=\"esfit8\" data-start=\"858\" data-end=\"872\"\u003eBlack finish\u003c\/li\u003e\n\u003cli data-section-id=\"mp8mjm\" data-start=\"873\" data-end=\"904\"\u003eOEM packaging (no retail box)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"vjb81h\" data-start=\"906\" data-end=\"940\"\u003eHead Tube Specification (SHIS)\u003c\/h3\u003e\n\u003cul data-start=\"942\" data-end=\"1020\"\u003e\n\u003cli data-section-id=\"7jpewl\" data-start=\"942\" data-end=\"962\"\u003e\n\u003cstrong data-start=\"944\" data-end=\"954\"\u003eUpper:\u003c\/strong\u003e ZS44\/30\u003c\/li\u003e\n\u003cli data-section-id=\"c69n0l\" data-start=\"963\" data-end=\"1020\"\u003e\n\u003cstrong data-start=\"965\" data-end=\"975\"\u003eLower:\u003c\/strong\u003e ZS56\/30 (using supplied reducing crown race)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1022\" data-end=\"1051\"\u003e\u003cstrong data-start=\"1022\" data-end=\"1051\"\u003eSuitable for frames with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1052\" data-end=\"1183\"\u003e\n\u003cli data-section-id=\"11yt3ac\" data-start=\"1052\" data-end=\"1093\"\u003e44 mm upper head tube internal diameter\u003c\/li\u003e\n\u003cli data-section-id=\"boh22u\" data-start=\"1094\" data-end=\"1135\"\u003e56 mm lower head tube internal diameter\u003c\/li\u003e\n\u003cli data-section-id=\"49gs3g\" data-start=\"1136\" data-end=\"1183\"\u003eSemi-integrated (Zero Stack) headset standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1yl5694\" data-start=\"1185\" data-end=\"1203\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul data-start=\"1205\" data-end=\"1468\"\u003e\n\u003cli data-section-id=\"taz6ap\" data-start=\"1205\" data-end=\"1240\"\u003e\n\u003cstrong data-start=\"1207\" data-end=\"1217\"\u003eBrand:\u003c\/strong\u003e FSA (Full Speed Ahead)\u003c\/li\u003e\n\u003cli data-section-id=\"16ewu4m\" data-start=\"1241\" data-end=\"1265\"\u003e\n\u003cstrong data-start=\"1243\" data-end=\"1253\"\u003eModel:\u003c\/strong\u003e No.57\/55E-1\u003c\/li\u003e\n\u003cli data-section-id=\"154gskv\" data-start=\"1266\" data-end=\"1306\"\u003e\n\u003cstrong data-start=\"1268\" data-end=\"1277\"\u003eType:\u003c\/strong\u003e Zero Stack (Semi-Integrated)\u003c\/li\u003e\n\u003cli data-section-id=\"mplbta\" data-start=\"1307\" data-end=\"1337\"\u003e\n\u003cstrong data-start=\"1309\" data-end=\"1321\"\u003eSteerer:\u003c\/strong\u003e 1-1\/8\" straight\u003c\/li\u003e\n\u003cli data-section-id=\"1h47pxd\" data-start=\"1338\" data-end=\"1374\"\u003e\n\u003cstrong data-start=\"1340\" data-end=\"1357\"\u003eCup Material:\u003c\/strong\u003e Forged aluminium\u003c\/li\u003e\n\u003cli data-section-id=\"r0gyct\" data-start=\"1375\" data-end=\"1413\"\u003e\n\u003cstrong data-start=\"1377\" data-end=\"1390\"\u003eBearings:\u003c\/strong\u003e Sealed angular contact\u003c\/li\u003e\n\u003cli data-section-id=\"ykuxkt\" data-start=\"1414\" data-end=\"1433\"\u003e\n\u003cstrong data-start=\"1416\" data-end=\"1427\"\u003eColour:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli data-section-id=\"hd07ur\" data-start=\"1434\" data-end=\"1468\"\u003e\n\u003cstrong data-start=\"1436\" data-end=\"1450\"\u003ePackaging:\u003c\/strong\u003e OEM (bulk packed)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1470\" data-end=\"1712\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1470\" data-end=\"1533\"\u003ePlease check your frame's headset standard before ordering.\u003c\/strong\u003e Headset standards can vary even between similar-looking frames, and the easiest way to avoid disappointment is to confirm your frame uses a \u003cstrong data-start=\"1674\" data-end=\"1701\"\u003eZS44 upper \/ ZS56 lower\u003c\/strong\u003ehead tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FSA","offers":[{"title":"Default Title","offer_id":57317807653237,"sku":"Blue29F7-H008300000E101","price":20.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0744\/7543\/8365\/files\/IMG_5145.jpg?v=1784218818","url":"https:\/\/www.bananaindustries.co.uk\/products\/fsa-headset-no-57-55e-1-1-1-8-alu-cups-check-not-same-as-fsa-n-57e-aluminium-headset-15mm-alloy-1-1-8-to-1-5","provider":"bananaindustries","version":"1.0","type":"link"}