{"product_id":"m-part-bicycle-headset-bearing-40x51-9x8mm-45-45-sealed-steering-component","title":"M Part Bicycle Headset Bearing 40x51.9x8mm 45°\/45° Sealed Steering Component","description":"\u003cp\u003eThe M Part Headset Bearing 40,0x51,9x8 45ø\/45ø is engineered for precise steering performance and durability. Designed to fit virtually all bicycle headsets, it ensures smooth operation with high-quality materials like CrMo races and ball bearings. The nylon retainer and full-contact rubber seals protect against dirt and moisture, extending the lifespan of your headset.\u003c\/p\u003e\n\n\u003cp\u003eWith ABEC-3 tolerance and premium Multemp SRL grease, this bearing delivers reliable rotation and reduced friction. Ideal for cyclists seeking superior control and longevity in their steering components.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEnsuring smooth, precise steering for various bicycle headsets\u003c\/li\u003e\n  \u003cli\u003eEnhancing durability with corrosion-resistant CrMo materials\u003c\/li\u003e\n  \u003cli\u003eProtecting against dirt and moisture with full-contact rubber seals\u003c\/li\u003e\n  \u003cli\u003eMaintaining consistent performance with high-quality grease and tight tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUse in non-bicycle or incompatible headset sizes\u003c\/li\u003e\n  \u003cli\u003eApplications requiring higher tolerance than ABEC-3\u003c\/li\u003e\n  \u003cli\u003eHeavy off-road use beyond standard cycling conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this bearing compatible with all bicycles?\u003c\/strong\u003e\u003cbr\u003eIt fits virtually all standard bicycle headsets, but verifying size compatibility is recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat maintenance does it require?\u003c\/strong\u003e\u003cbr\u003eRegular inspection and cleaning ensure optimal performance, but the sealed design reduces maintenance needs.\u003c\/p\u003e","brand":"M Part","offers":[{"title":"Default Title","offer_id":45478275383471,"sku":"CB-780","price":14.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1720177773-27459100.jpg?v=1768521106","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/m-part-bicycle-headset-bearing-40x51-9x8mm-45-45-sealed-steering-component","provider":"Swinnerton Cycles","version":"1.0","type":"link"}