{"product_id":"enduro-bearings-dr-21531-sw-abec-3-14mm-cycling-hub-bottom-bracket-bearing-21-5x31x14mm","title":"Enduro Bearings DR 21531 SW ABEC 3 14mm Cycling Hub \u0026 Bottom Bracket Bearing 21.5x31x14mm","description":"\u003cp\u003eEnduro Bearings DR 21531 SW - ABEC 3 14mm offers a reliable upgrade for cyclists seeking enhanced durability and smooth performance. Designed with hardened chromium steel races and balls, combined with robust riveted steel retainers, these bearings deliver long-lasting strength and precision. Their ABEC 3 rating ensures better quality and efficiency compared to standard ABEC 1 bearings commonly found in many original equipment setups.\u003c\/p\u003e\n\n\u003cp\u003eSpecifically engineered for components like hubs and bottom brackets, these bearings come pre-greased with Mobile HP 222 for optimal lubrication and protection against wear. The DR 21531 dimension of 21.5 x 31 x 14mm fits various transmission systems, making it a versatile addition to your bike’s setup. This product balances cost-effectiveness with high-grade performance, making it a smart choice for cyclists who value reliability and smooth operation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eImproving bearing performance over standard ABEC 1 bearings\u003c\/li\u003e\n  \u003cli\u003eProviding durability with hardened chromium steel components\u003c\/li\u003e\n  \u003cli\u003eFitting hubs and bottom brackets with precise 21.5 x 31 x 14mm dimensions\u003c\/li\u003e\n  \u003cli\u003eEnsuring smooth rotation and reduced friction in cycling components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eApplications requiring bearings with higher ABEC ratings for extreme precision\u003c\/li\u003e\n  \u003cli\u003eUse in environments lacking regular maintenance or lubrication\u003c\/li\u003e\n  \u003cli\u003eSituations demanding custom-sized bearings outside the specified dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan these bearings be used for other applications beyond cycling?\u003c\/strong\u003e\u003cbr\u003eWhile primarily designed for cycling components like hubs and bottom brackets, their size and durability may suit other machinery, but compatibility should be confirmed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the ABEC 3 rating mean for performance?\u003c\/strong\u003e\u003cbr\u003eABEC 3 indicates a higher level of precision than ABEC 1, resulting in smoother operation and better efficiency, ideal for most cycling needs.\u003c\/p\u003e","brand":"Enduro Bearings","offers":[{"title":"Default Title","offer_id":45478352748719,"sku":"EB8103","price":9.03,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1525173084-01520200.jpg?v=1768520863","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/enduro-bearings-dr-21531-sw-abec-3-14mm-cycling-hub-bottom-bracket-bearing-21-5x31x14mm","provider":"Swinnerton Cycles","version":"1.0","type":"link"}