{"product_id":"shimano-dura-ace-cs-r9100-11-speed-cassette-one-color-12-28","title":"SHIMANO Dura-Ace Cs-R9100 11-Speed Cassette One Color, 12-28","description":"\t\u003cp\u003e Shimano s groupsets often often miss call-outs for European elegance or relentless pursuit of weight loss at all cost and innovation for innovation s sake, instead earning their loyal following through the incredible dependability and meticulous engineering of the Dura-Ace CS-R9100 11-Speed Cassette. 9100 isn t a typo there, it is, in fact, a newly reworked version of Dura-Ace. When the brand introduces a new groupset, you can be sure it s actually boasting improvements you don t have to be Porte or Stannard to detect on a routine Sunday in the saddle. Since Dura-Ace is the top-tier drivetrain in the Shimano road lineup, you might be surprised that only the largest five cogs are titanium. That s because—though it s lighter—titanium is generally more prone to wear than nickel-plated steel, and the smaller cogs are more prone to wear than the larger. Because of these material properties, Shimano only uses titanium where the softer metal doesn t create a significant negative impact.  \u003c\/p\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":49643228692775,"sku":"1BID-1DLL-8FHC","price":284.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/6073\/8599\/files\/689228858633_B01LQGCLJO_1BID-1DLL-8FHC_3a28c704-7675-4869-bca5-eafb0c0c27cc.jpg?v=1737649175","url":"https:\/\/spiritedcyclist.com\/products\/shimano-dura-ace-cs-r9100-11-speed-cassette-one-color-12-28","provider":"Spirited Cyclist","version":"1.0","type":"link"}