{"product_id":"shimano-ultegra-cs-r8101-12-speed","title":"Shimano Ultegra CS-R8101 12 Speed","description":"\u003cdiv class=\"dbyk-product\"\u003e\n\n  \u003c!-- TITLE --\u003e\n  \u003ch3\u003eShimano ULTEGRA CS-R8100 12-Speed Cassette\u003c\/h3\u003e\n\n  \u003c!-- OVERVIEW --\u003e\n  \u003cp\u003e\n    The Shimano ULTEGRA R8100 12-speed cassette delivers smooth, uninterrupted shifting \n    whether you're climbing, sprinting, or cruising. Built with HYPERGLIDE+ technology, \n    it allows seamless shifting under load—so you never have to back off your effort.\n  \u003c\/p\u003e\n\n  \u003cp\u003e\n    Designed for efficiency and compatibility, the cassette works with both Shimano 11-speed \n    and 12-speed HG freehub bodies, making it an easy upgrade to modern 12-speed drivetrains.\n  \u003c\/p\u003e\n\n  \u003c!-- FEATURES --\u003e\n  \u003ch4\u003eKey Features\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003eHYPERGLIDE+ technology for smooth shifting under load\u003c\/li\u003e\n    \u003cli\u003e12-speed range for wider gear options\u003c\/li\u003e\n    \u003cli\u003eImproved drivetrain efficiency with optimized cog sizes\u003c\/li\u003e\n    \u003cli\u003eCompatible with Shimano 11-speed and 12-speed HG freehubs\u003c\/li\u003e\n    \u003cli\u003eConsistent performance across climbs, sprints, and endurance rides\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- PERFORMANCE --\u003e\n  \u003ch4\u003ePerformance Advantage\u003c\/h4\u003e\n  \u003cp\u003e\n    Unlike traditional cassettes, ULTEGRA R8100 allows shifting even during high power output. \n    Whether you're attacking a climb or accelerating in a sprint, gear transitions remain \n    smooth and controlled.\n  \u003c\/p\u003e\n\n  \u003c!-- GEAR OPTIONS --\u003e\n  \u003ch4\u003eGear Options\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e11-30T:\u003c\/strong\u003e 11-12-13-14-15-16-17-19-21-24-27-30T\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e11-34T:\u003c\/strong\u003e 11-12-13-14-15-17-19-21-24-27-30-34T\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003c!-- SPEC TABLE --\u003e\n  \u003ch4\u003eSpecifications\u003c\/h4\u003e\n\n  \u003cdiv style=\"overflow-x:auto;\"\u003e\n    \u003ctable style=\"width:100%; border-collapse:collapse; font-size:14px;\"\u003e\n      \u003ctbody\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003eCS-R8100\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003eShimano Ultegra R8100\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e\u003cstrong\u003eSpeeds\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e12-speed\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003eHYPERGLIDE+\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e\u003cstrong\u003eCompatible Chain\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003eHG 12-speed\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e\u003cstrong\u003eFreehub Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003eHG spline (11 \u0026amp; 12-speed compatible)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e~291g (11-30T), ~345g (11-34T)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e\u003cstrong\u003eSpider Arms\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px; border-bottom:1px solid #eee;\"\u003e2 (Aluminium)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n          \u003ctd style=\"padding:10px;\"\u003e\u003cstrong\u003eGears\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding:10px;\"\u003eSteel (12 cogs)\u003c\/td\u003e\n        \u003c\/tr\u003e\n\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"11-34T \/ 12 SPEED","offer_id":51878305005799,"sku":"ICSR810112134","price":8640.0,"currency_code":"INR","in_stock":true},{"title":"11-30T \/ 12 SPEED","offer_id":51878305038567,"sku":"ICSR810112130","price":8640.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/8384\/9447\/files\/shimano-ultegra-cs-r8101-12-speed-7374516.jpg?v=1774269547","url":"https:\/\/www.dbykstore.com\/products\/shimano-ultegra-cs-r8101-12-speed","provider":"D Byk Store ","version":"1.0","type":"link"}