{"product_id":"2pcs-steel-bike-headset-bearings-41mm-52mm-replacement-set","title":"2PCS Steel Bike Headset Bearings 41mm–52mm Replacement","description":"\n\u003ch2\u003e2PCS Durable Steel Bike Headset Bearings — Multiple Sizes Available\u003c\/h2\u003e\n\u003cp\u003eKeep your ride smooth and your steering precise with this set of \u003cstrong\u003e2 heavy-duty bearing steel bike headset bearings\u003c\/strong\u003e. Designed as direct replacement parts for road and mountain bikes, these sealed bearings fit a wide range of integrated, semi-integrated, and external headset styles — making maintenance simple and affordable.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose These Headset Bearings?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSet of 2:\u003c\/strong\u003e Two replacement headset bearings included per order — great value for a full front-end service.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Size Options:\u003c\/strong\u003e Available in five common outer diameters to fit most modern bicycles:\n    \u003cul\u003e\n      \u003cli\u003e41 mm \/ 30.2 mm (OD\/ID) — Height: 6.5 mm\u003c\/li\u003e\n      \u003cli\u003e41.8 mm \/ 30.2 mm (OD\/ID) — Height: 6.5 mm\u003c\/li\u003e\n      \u003cli\u003e47 mm \/ 34 mm (OD\/ID) — Height: 7 mm\u003c\/li\u003e\n      \u003cli\u003e49 mm \/ 37 mm (OD\/ID) — Height: 7 mm\u003c\/li\u003e\n      \u003cli\u003e52 mm \/ 40 mm (OD\/ID) — Height: 7 mm\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFully Sealed Construction:\u003c\/strong\u003e Each bearing is fully sealed to block water, dust, and dirt — extending service life and reducing how often you need to service your headset.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Headset Compatibility:\u003c\/strong\u003e Fits most full hidden (integrated), semi-hidden (semi-integrated), and external bearing headsets found on modern road, mountain, gravel, and commuter bikes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing Steel Material:\u003c\/strong\u003e Made from durable silver bearing steel for strong wear resistance and smooth, consistent rotation — helping maintain precise handling at the front fork and stem interface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBike Headset Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBearing Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilver\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 PCS per set\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize Options (OD\/ID)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e41\/30.2 mm · 41.8\/30.2 mm · 47\/34 mm · 49\/37 mm · 52\/40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.5 mm (41 mm \u0026amp; 41.8 mm) · 7 mm (47 mm, 49 mm \u0026amp; 52 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2 × Bike Headset Bearing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eNot suitable for repairing old loose-ball or cup-and-cone style headsets.\u003c\/li\u003e\n  \u003cli\u003ePlease select your required size carefully before ordering — measure your existing bearings (outer diameter, inner diameter, and height) to confirm compatibility.\u003c\/li\u003e\n  \u003cli\u003eSlight color variation may occur due to monitor display settings and lighting conditions.\u003c\/li\u003e\n  \u003cli\u003eAllow ±0.5 mm manual measurement deviation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cp\u003eLooking for more useful workshop and maintenance accessories? Check out:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003e1PC 10g High Grade Silicone Grease Lubricant for O-Rings \u0026amp; Tube\u003c\/a\u003e — ideal for lubricating bearings and seals during installation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/1pc-multi-use-faucet-bubbler-wrenches-6-sizes-sink-wrenches-detach-tool-for-kitchen-bathroom-faucet-parts-repair-spanner\"\u003e1PC Multi-Use 6-Size Wrench Repair Spanner\u003c\/a\u003e — a handy multi-size tool for various repair tasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/medlineplus.gov\/benefitsofexercise.html\" target=\"_blank\" rel=\"noopener\"\u003eMedlinePlus on the benefits of exercise\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What sizes do these bike headset bearings come in?\u003c\/h4\u003e\n\u003cp\u003eA: These headset bearings are available in five outer diameter sizes: 41 mm, 41.8 mm, 47 mm, 49 mm, and 52 mm. The corresponding inner diameters are 30.2 mm, 30.2 mm, 34 mm, 37 mm, and 40 mm respectively. Heights are 6.5 mm for the two smaller sizes and 7 mm for the three larger sizes. Always measure your existing bearings before ordering to ensure the correct fit.\u003c\/p\u003e\n\u003ch4\u003eQ: What type of headsets are these bearings compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: These replacement bike headset bearings are suitable for most full hidden (integrated), semi-hidden (semi-integrated), and external bearing headsets found on modern road bikes, mountain bikes, gravel bikes, and commuter bicycles. They are NOT compatible with older loose-ball or cup-and-cone style headsets.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these bearings sealed against water and dirt?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. Each bearing features a fully sealed construction that helps keep out water, dust, and dirt during riding in various weather and terrain conditions. This sealed design improves durability and reduces the frequency of maintenance required.\u003c\/p\u003e\n\u003ch4\u003eQ: How many bearings are included per order?\u003c\/h4\u003e\n\u003cp\u003eA: Each order includes 2 bike headset bearings, giving you everything needed to replace both the upper and lower headset bearings in one go.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What sizes do these bike headset bearings come in?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These headset bearings are available in five outer diameter sizes: 41 mm, 41.8 mm, 47 mm, 49 mm, and 52 mm. The corresponding inner diameters are 30.2 mm, 30.2 mm, 34 mm, 37 mm, and 40 mm respectively. Heights are 6.5 mm for the two smaller sizes and 7 mm for the three larger sizes. 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This sealed design improves durability and reduces the frequency of maintenance required.\"}}, {\"@type\": \"Question\", \"name\": \"How many bearings are included per order?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each order includes 2 bike headset bearings, giving you everything needed to replace both the upper and lower headset bearings in one go.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"2PCS Steel Bike Headset Bearings 41mm–52mm Replacement\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/products\/2pcs-steel-bike-headset-bearings-41mm-52mm-replacement-set\"}]}\u003c\/script\u003e","brand":"Nixie","offers":[{"title":"41.8mm","offer_id":67605659844707,"sku":"1005012839310137-41.8mm","price":18.5,"currency_code":"USD","in_stock":true},{"title":"47mm","offer_id":67605659877475,"sku":"1005012839310137-47mm","price":29.55,"currency_code":"USD","in_stock":true},{"title":"49mm","offer_id":67605659910243,"sku":"1005012839310137-49mm","price":53.77,"currency_code":"USD","in_stock":true},{"title":"52mm","offer_id":67605659943011,"sku":"1005012839310137-52mm","price":30.89,"currency_code":"USD","in_stock":true},{"title":"41mm","offer_id":67605659975779,"sku":"1005012839310137-41mm","price":17.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2047\/6003\/files\/S15055fa14e0f42b7bedc24e7757618917.webp?v=1790738762","url":"https:\/\/nixiehaven.com\/products\/2pcs-steel-bike-headset-bearings-41mm-52mm-replacement-set","provider":"Nixie","version":"1.0","type":"link"}