{"product_id":"m-part-cartridge-bearing-63801-2rs-12x21x7-bicycle-hub-replacement-with-abec-3-tolerance","title":"M Part Cartridge Bearing 63801 2RS 12x21x7 Bicycle Hub Replacement with ABEC-3 Tolerance","description":"\u003cp\u003eThe M Part Cartridge Bearing 63801 2RS 12x21x7 offers reliable performance designed specifically for bicycles. Engineered with precision, it matches the quality of original bearings used by leading bike brands, ensuring smooth and efficient wheel rotation. Durable steel retainers and CrMo components provide long-lasting strength.\u003c\/p\u003e\n\n\u003cp\u003eWith ABEC-3 tolerance and high-quality Multemp SRL grease, this bearing reduces friction and wear, enhancing your ride’s overall stability and comfort. It’s a perfect replacement part to keep your bike running smoothly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProviding smooth, low-friction wheel rotation\u003c\/li\u003e\n  \u003cli\u003eEnsuring durability with CrMo races and ball bearings\u003c\/li\u003e\n  \u003cli\u003eMaintaining high performance in bicycle hubs and wheels\u003c\/li\u003e\n  \u003cli\u003eOffering a reliable replacement matching original specifications\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 applications requiring different specifications\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty industrial machinery beyond standard bike use\u003c\/li\u003e\n  \u003cli\u003eEnvironments with conditions outside typical cycling parameters\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 bike models?\u003c\/strong\u003e\u003cbr\u003eIt is designed to match bearings used by major bike brands, but compatibility depends on your specific bike model and hub size.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the bearing come pre-greased?\u003c\/strong\u003e\u003cbr\u003eYes, it includes Multemp SRL (Kyodo Yushi) grease for optimal performance right out of the box.\u003c\/p\u003e","brand":"M Part","offers":[{"title":"Default Title","offer_id":45499460092079,"sku":"CB-072","price":5.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1720177570-32338300.jpg?v=1768523551","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/m-part-cartridge-bearing-63801-2rs-12x21x7-bicycle-hub-replacement-with-abec-3-tolerance","provider":"Swinnerton Cycles","version":"1.0","type":"link"}