{"product_id":"shimano-ultegra-cs-r8101-12-speed-hyperglide-road-bike-cassette-silver","title":"Shimano Ultegra CS-R8101 12-Speed Hyperglide+ Road Bike Cassette - Silver","description":"\u003cdiv style=\"font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:1.6;color:#333;\"\u003e\n\n\u003ch2\u003eShimano Ultegra CS-R8101 12-Speed Cassette\u003c\/h2\u003e\n\n\u003cp\u003e\nThe Shimano Ultegra CS-R8101 cassette is designed to deliver fast, smooth and efficient shifting performance for modern 12-speed road drivetrains. Featuring Shimano's advanced Hyperglide+ technology, it allows seamless gear changes even under heavy pedalling loads, helping riders maintain momentum during climbs, sprints and high-intensity riding.\n\u003c\/p\u003e\n\n\u003cp\u003e\nAs part of the latest Ultegra groupset, the CS-R8101 combines lightweight construction, refined gear spacing and excellent drivetrain efficiency. Its advanced tooth profiles and shift ramps are engineered to provide precise shifting performance with both mechanical and Di2 12-speed systems.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe cassette retains compatibility with traditional Shimano HG road freehub bodies, making upgrades straightforward without necessarily requiring new wheels or hubs.\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eShimano Ultegra R8100 series cassette\u003c\/li\u003e\n\u003cli\u003e12-speed drivetrain compatibility\u003c\/li\u003e\n\u003cli\u003eHyperglide+ technology for faster shifting\u003c\/li\u003e\n\u003cli\u003eSmooth gear changes under pedalling load\u003c\/li\u003e\n\u003cli\u003eCompatible with Shimano Di2 and mechanical systems\u003c\/li\u003e\n\u003cli\u003eFits standard Shimano HG freehub bodies\u003c\/li\u003e\n\u003cli\u003eRefined gear progression for efficient cadence control\u003c\/li\u003e\n\u003cli\u003eLightweight and durable construction\u003c\/li\u003e\n\u003cli\u003eDesigned for road cycling performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Shimano\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Ultegra R8100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e CS-R8101-12\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Cassette\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Compatibility:\u003c\/strong\u003e 12 Speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTechnology:\u003c\/strong\u003e Hyperglide+\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Chain:\u003c\/strong\u003e Shimano HG 12-Speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreehub Compatibility:\u003c\/strong\u003e Shimano HG 11\/12-Speed Road\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Ratios:\u003c\/strong\u003e 11-30T or 11-34T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiscipline:\u003c\/strong\u003e Road Cycling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nDesigned for riders demanding quick, precise and dependable shifting performance, the Shimano Ultegra CS-R8101 delivers the efficiency and reliability expected from one of Shimano's premier road cycling groupsets.\n\u003c\/p\u003e\n\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"Grade A","offer_id":53870424785234,"sku":"Hal\/826349#A","price":133.89,"currency_code":"GBP","in_stock":false},{"title":"Grade B+","offer_id":53870424818002,"sku":"Hal\/826349#B","price":126.79,"currency_code":"GBP","in_stock":false},{"title":"Grade C+","offer_id":53870424850770,"sku":"Hal\/826349#C","price":112.59,"currency_code":"GBP","in_stock":false},{"title":"Grade D+","offer_id":53870424883538,"sku":"Hal\/826349#D","price":98.29,"currency_code":"GBP","in_stock":false},{"title":"NEW","offer_id":53870424916306,"sku":"Hal\/826349#NEW","price":68.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0905\/8844\/7058\/files\/826349_20a.jpg?v=1782737929","url":"https:\/\/www.tlx.co.uk\/products\/shimano-ultegra-cs-r8101-12-speed-hyperglide-road-bike-cassette-silver","provider":"TLX","version":"1.0","type":"link"}