{"product_id":"m-part-bicycle-cartridge-bearing-6801-2rs-12x21x5-abec-3-with-crmo-balls-and-multemp-srl-grease","title":"M Part Bicycle Cartridge Bearing 6801 2RS 12x21x5 ABEC-3 with CrMo Balls and Multemp SRL Grease","description":"\u003cp\u003eThe M Part Cartridge Bearing 6801 2RS 12x21x5 is engineered specifically for bicycles, ensuring durability and smooth performance. Crafted with steel retainers and CrMo races, it delivers long-lasting reliability under various riding conditions. The ABEC-3 tolerance guarantees precise fit and efficient rotation, minimizing friction.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing high-quality CrMo ball bearings (HRC 61-66) and premium Multemp SRL (Kyodo Yushi) grease, this bearing maintains optimal lubrication and reduces wear. Ideal for those seeking a replacement that matches original equipment standards used by top bike manufacturers.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacing worn or damaged bicycle bearings\u003c\/li\u003e\n  \u003cli\u003eEnhancing wheel rotation smoothness and efficiency\u003c\/li\u003e\n  \u003cli\u003eProviding reliable performance in hubs and spares\u003c\/li\u003e\n  \u003cli\u003eMaintaining optimal lubrication with high-grade grease\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eNon-bicycle applications requiring different bearing sizes\u003c\/li\u003e\n  \u003cli\u003eEnvironments with extreme contamination or debris\u003c\/li\u003e\n  \u003cli\u003eHeavy industrial machinery beyond standard bike use\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 bicycle hubs?\u003c\/strong\u003e\u003cbr\u003eIt fits hubs designed for 6801 2RS size (12x21x5), common in many bike models but always check your specific requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat maintenance does this bearing require?\u003c\/strong\u003e\u003cbr\u003eThe bearing comes pre-greased with Multemp SRL grease, requiring minimal maintenance under normal conditions.\u003c\/p\u003e","brand":"M Part","offers":[{"title":"Default Title","offer_id":45499460059311,"sku":"CB-071","price":3.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1720177568-63959100.jpg?v=1768523553","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/m-part-bicycle-cartridge-bearing-6801-2rs-12x21x5-abec-3-with-crmo-balls-and-multemp-srl-grease","provider":"Swinnerton Cycles","version":"1.0","type":"link"}