{"product_id":"shimano-ultegra-m8100-12-speed-gear-service-kit","title":"Shimano Ultegra (R8100) 12 Speed Gear Service Kit","description":"\u003cp data-path-to-node=\"1\"\u003eThis comprehensive kit provides a matched CN-M8100 chain, CS-R8101 cassette, and RD-R8150 pulley set specific to the high-performance Shimano Ultegra 12-Speed (Di2 and non-Di2) system. This bundle offers a significant combined discount over buying individual components.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eRoutine replacement is vital, as worn components severely reduce SIL-TEC shifting accuracy and overall efficiency. A worn chain stretches, causing misalignment with the cassette teeth.\u003c\/p\u003e\n\u003cp data-path-to-node=\"3\"\u003eIt is crucial to replace all three parts simultaneously. Fitting a new chain onto a worn 12 spd cassette causes immediate skipping and dramatically accelerates wear on the new component. Our matched kit ensures peak performance, maximizing your entire drivetrain's lifespan right away. \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"1\"\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eIncluded:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul class=\"description-overview\"\u003e\n\u003cli\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003ca rel=\"noopener\" title=\"Shimano CS-R8101 Ultegra 12-speed cassette 11 - 34T\" href=\"https:\/\/www.e-bikeshop.co.uk\/products\/shimano-cs-r8101-ultegra-12-speed-cassette-11-34t\" target=\"_blank\"\u003eUltegra R8101 - HYPERGLIDE+ - 12-speed - 11-34T\u003c\/a\u003e (CSR810112134)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003ca rel=\"noopener\" title=\"Shimano XT 12 Speed Chain 126 Link (M8100)\" href=\"https:\/\/www.e-bikeshop.co.uk\/products\/shimano-xt-12-speed-chain\" target=\"_blank\"\u003eCN-M8100 XT \/ Ultegra - with quick link - 12-speed - 126L\u003c\/a\u003e (CNM8100126Q) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-sheets-root=\"1\"\u003e\u003ca rel=\"noopener\" title=\"Shimano RD-R8150 Ultegra 12 speed Pulley Set\" href=\"https:\/\/www.e-bikeshop.co.uk\/products\/shimano-rd-r8150-ultegra-12-speed-pulley-set\" target=\"_blank\"\u003eRD-R8150 Ultegra rear mech pulley set\u003c\/a\u003e (Y3J198010)\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":56897977713024,"sku":"ULTEGRA12SERVICEKIT","price":184.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/4838\/1934\/files\/Shimano-Ultegra-R8101-12-Speed-Service-Kit-Bundle.jpg?v=1763392265","url":"https:\/\/www.e-bikeshop.co.uk\/products\/shimano-ultegra-m8100-12-speed-gear-service-kit","provider":"e-bikeshop.co.uk","version":"1.0","type":"link"}