{"product_id":"shimano-grx-fc-rx820-2-12-speed-double-chainring-48t-nd-for-48-31t-gravel-bike","title":"Shimano GRX FC-RX820-2 12-Speed Double Chainring 48T-ND for 48-31T Gravel Bike","description":"\u003cp\u003eUpgrade your gravel bike with the Shimano GRX FC-RX820-2 12 speed double outer chainring 48T-ND, designed specifically for the 48-31T setup. Crafted from lightweight aluminium with anodised teeth, these chainrings are engineered to deliver exceptional durability and smooth, precise shifting even under the most demanding conditions. Whether tackling rugged trails or muddy paths, this chainring combination ensures optimal pedalling efficiency on every ride.\u003c\/p\u003e\n\n\u003cp\u003eThese genuine Shimano replacement chainrings are perfectly matched for the FC-RX820 2X cranksets and work seamlessly with Shimano’s 12-speed HG+ drivetrain. This integration promotes enhanced power transfer and greater overall riding performance, making it an essential upgrade for serious gravel enthusiasts seeking reliability and precision.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacing worn or damaged chainrings to restore peak performance\u003c\/li\u003e\n  \u003cli\u003eProviding lightweight yet rigid construction for accurate, high-load shifting\u003c\/li\u003e\n  \u003cli\u003eOptimizing pedalling efficiency on long and challenging off-road gravel rides\u003c\/li\u003e\n  \u003cli\u003eEnhancing power transfer with Shimano’s 12-speed HG+ chain compatibility\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 with non-Shimano cranksets or incompatible drivetrain systems\u003c\/li\u003e\n  \u003cli\u003eSingle-speed or lower speed gearing configurations\u003c\/li\u003e\n  \u003cli\u003eCasual riding where advanced gravel-specific components are unnecessary\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this chainring compatible with all Shimano GRX cranksets?\u003c\/strong\u003e\u003cbr\u003eThis chainring is specifically designed for the FC-RX820 2X cranksets and may not fit other GRX models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat chain should I use with this chainring?\u003c\/strong\u003e\u003cbr\u003eIt is optimized for Shimano’s 12-speed HG+ chains to ensure smooth shifting and maximum efficiency.\u003c\/p\u003e","brand":"Shimano GRX","offers":[{"title":"48 teeth \/ Black","offer_id":45735523778735,"sku":"Y0SC98010","price":69.67,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/y0sc98010.jpg?v=1768526436","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/shimano-grx-fc-rx820-2-12-speed-double-chainring-48t-nd-for-48-31t-gravel-bike","provider":"Swinnerton Cycles","version":"1.0","type":"link"}