{"product_id":"shimano-fc-rx820-grx-12-speed-hollowtech-ii-gravel-chainset-for-mixed-terrain","title":"Shimano FC-RX820 GRX 12-Speed Hollowtech II Gravel Chainset for Mixed Terrain","description":"\u003cp\u003eThe Shimano FC-RX820 GRX Chainset 12-Speed Hollowtech II is engineered specifically for gravel enthusiasts seeking durability and precision. Its gravel-specific ergonomics and optimized 12-speed gearing provide seamless performance across varied terrains. Crafted with anodized aluminium crank arms and a lightweight aluminium chainring, this chainset ensures a smooth and efficient ride while maintaining rugged reliability.\u003c\/p\u003e\n\n\u003cp\u003eDesigned to integrate perfectly with HollowTech II bottom bracket cups and compatible with 12-speed HG chains, it delivers quiet and stable drivetrain performance. The 4-arm design with a 110 mm bolt circle diameter offers a solid yet lightweight structure, ideal for mixed riding styles.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eOptimized gearing for mixed terrain and gravel riding\u003c\/li\u003e\n  \u003cli\u003eDurable and lightweight design for enhanced performance\u003c\/li\u003e\n  \u003cli\u003eQuiet and stable drivetrain operation\u003c\/li\u003e\n  \u003cli\u003eCompatibility with 12-speed HG chains and HollowTech II systems\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-gravel specific cycling disciplines requiring different gearing\u003c\/li\u003e\n  \u003cli\u003eUse with bottom brackets not compatible with HollowTech II\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this chainset compatible with all 12-speed drivetrains?\u003c\/strong\u003e\u003cbr\u003eIt is compatible specifically with 12-speed HG chains and designed for use with HollowTech II bottom bracket systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this chainset be used for road cycling?\u003c\/strong\u003e\u003cbr\u003eWhile optimized for gravel, it may not offer the ideal gearing ratios for pure road cycling performance.\u003c\/p\u003e","brand":"Shimano GRX","offers":[{"title":"46 \/ 30 teeth \/ Black \/ 165 mm","offer_id":45735523942575,"sku":"FCRX6102A60","price":167.31,"currency_code":"GBP","in_stock":true},{"title":"46 \/ 30 teeth \/ Black \/ 170 mm","offer_id":45735523975343,"sku":"FCRX6102C60","price":167.31,"currency_code":"GBP","in_stock":true},{"title":"46 \/ 30 teeth \/ Black \/ 172.5 mm","offer_id":45735524008111,"sku":"FCRX6102D60","price":167.31,"currency_code":"GBP","in_stock":true},{"title":"46 \/ 30 teeth \/ Black \/ 175 mm","offer_id":45735524040879,"sku":"FCRX6102E60","price":167.31,"currency_code":"GBP","in_stock":true},{"title":"40 teeth \/ Grey \/ 170 mm","offer_id":45735524073647,"sku":"FCRX8201C0","price":223.77,"currency_code":"GBP","in_stock":true},{"title":"42 teeth \/ Grey \/ 170 mm","offer_id":45735524106415,"sku":"FCRX8201C2","price":223.77,"currency_code":"GBP","in_stock":true},{"title":"40 teeth \/ Grey \/ 172.5 mm","offer_id":45735524139183,"sku":"FCRX8201D0","price":223.77,"currency_code":"GBP","in_stock":true},{"title":"42 teeth \/ Grey \/ 172.5 mm","offer_id":45735524171951,"sku":"FCRX8201D2","price":223.77,"currency_code":"GBP","in_stock":true},{"title":"40 teeth \/ Grey \/ 175 mm","offer_id":45735524204719,"sku":"FCRX8201E0","price":223.77,"currency_code":"GBP","in_stock":true},{"title":"42 teeth \/ Grey \/ 175 mm","offer_id":45735524237487,"sku":"FCRX8201E2","price":223.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/fcrx61024630.jpg?v=1768526426","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/shimano-fc-rx820-grx-12-speed-hollowtech-ii-gravel-chainset-for-mixed-terrain","provider":"Swinnerton Cycles","version":"1.0","type":"link"}