{"product_id":"shimano-grx-fc-rx820-1-12-speed-40t-single-chainring-for-gravel-road-bikes","title":"Shimano GRX FC-RX820-1 12-Speed 40T Single Chainring for Gravel \u0026 Road Bikes","description":"\u003cp\u003eThe Shimano GRX FC-RX820-1 12-speed single chainring, with 40 teeth, is engineered to deliver reliable performance for your gravel or road bike. Crafted from lightweight aluminum and featuring anodized teeth, it ensures durability without compromising weight. Its design incorporates a thick-thin tooth profile that enhances chain retention and provides smooth pedaling, even in challenging and muddy conditions.\u003c\/p\u003e\n\n\u003cp\u003eSpecifically made for Shimano’s 12-speed HG+ chain, this chainring optimizes power transfer and shift precision, allowing you to maintain momentum during intense rides. Whether you're replacing worn components or upgrading your crankset, this genuine Shimano chainring offers a perfect fit and consistent performance for your FC-RX820 1X crankset.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eProviding smooth and precise shifting under high load conditions\u003c\/li\u003e\n  \u003cli\u003eEnhancing chain retention to prevent slips in rough terrain\u003c\/li\u003e\n  \u003cli\u003eOffering lightweight strength for efficient power transfer\u003c\/li\u003e\n  \u003cli\u003eDurability in muddy and tough riding environments\u003c\/li\u003e\n  \u003cli\u003eCompatibility with Shimano 12-speed HG+ chains for optimal performance\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 or incompatible chain systems\u003c\/li\u003e\n  \u003cli\u003eApplications requiring multiple chainrings or setups other than 1X\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty mountain biking beyond gravel and road conditions\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\u003eIt is specifically designed for the FC-RX820 1X cranksets and may not fit other models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this chainring with a 10 or 11-speed drivetrain?\u003c\/strong\u003e\u003cbr\u003eNo, this chainring is optimized for Shimano’s 12-speed HG+ chains and may not perform well with other speeds.\u003c\/p\u003e","brand":"Shimano GRX","offers":[{"title":"Default Title","offer_id":45478493028527,"sku":"Y0SB98010","price":60.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1731600337-54947300.jpg?v=1768521938","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/shimano-grx-fc-rx820-1-12-speed-40t-single-chainring-for-gravel-road-bikes","provider":"Swinnerton Cycles","version":"1.0","type":"link"}