{"product_id":"cs-r8101-12","title":"CS-R8101-12 (ULTEGRA)","description":"\u003ch3 class=\"list_anchor_cs_h3\"\u003eSHIMANO CS-R8101-12 (ULTEGRA) | 12-speed Cassette Sprocket for High-Speed Shifting and Efficient Gear Ratios\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eSmoothly responds to all pace changes.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe SHIMANO ULTEGRA R8100 series \"CS-R8101-12\" is a 12-speed road cassette sprocket adopting HYPERGLIDE+ technology.\u003c\/p\u003e\n\u003cp\u003eThe refined 12-speed configuration supports efficient cadence maintenance in a wide range of situations, from racing to long rides. It demonstrates smooth and quick shifting performance even under high load, such as during acceleration or climbing.\u003c\/p\u003e\n\u003cp\u003eThe adoption of HYPERGLIDE+ achieves an even more natural shift feel than before. The chain moves quickly to the sprocket, allowing for comfortable shifting without stopping pedaling.\u003c\/p\u003e\n\u003cp\u003eFurthermore, it is compatible not only with new generation 12-speed road freehubs but also with existing 11-speed road freehub bodies. The ability to upgrade to the latest 12-speed system while utilizing existing wheel assets is also a major appeal.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"list_anchor_cs_h3\"\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e12-speed cassette sprocket from the ULTEGRA R8100 series\u003c\/li\u003e\n\n\u003cli\u003eHigh-speed and smooth shifting performance with HYPERGLIDE+\u003c\/li\u003e\n\n\u003cli\u003eStable shifting even under high load\u003c\/li\u003e\n\n\u003cli\u003e12-speed configuration for efficient cadence maintenance\u003c\/li\u003e\n\n\u003cli\u003eSuitable for a wide range of uses from racing to long rides\u003c\/li\u003e\n\n\u003cli\u003eAlso compatible with existing 11-speed road freehub bodies\u003c\/li\u003e\n\n\u003cli\u003eHigh compatibility with the latest 12-speed road components\u003c\/li\u003e\n\n\u003cli\u003eAvailable in two types: 11-30T and 11-34T\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 class=\"list_anchor_cs_h3\"\u003eSPEC\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003eBrand: SHIMANO\u003c\/li\u003e\n\n\u003cli\u003eModel: CS-R8101-12\u003c\/li\u003e\n\n\u003cli\u003eSeries: ULTEGRA R8100\u003c\/li\u003e\n\n\u003cli\u003eType: HYPERGLIDE+\u003c\/li\u003e\n\n\u003cli\u003eCompatible speeds: 12-speed\u003c\/li\u003e\n\n\u003cli\u003eCompatible chain: HG 12-speed\u003c\/li\u003e\n\n\u003cli\u003eSpline type: HG Spline L2 (Road 12-speed specific)\u003c\/li\u003e\n\n\u003cli\u003eGear configuration (11-30T): 11-12-13-14-15-16-17-19-21-24-27-30T\u003c\/li\u003e\n\n\u003cli\u003eGear configuration (11-34T): 11-12-13-14-15-17-19-21-24-27-30-34T\u003c\/li\u003e\n\n\u003cli\u003eAverage weight: 291g (11-30T), 345g (11-34T)\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAmong the R8100 generation ULTEGRA, the CS-R8101-12 particularly stands out for its high level of perfection.\u003c\/p\u003e\n\u003cp\u003eThanks to HYPERGLIDE+, shifting is incredibly smooth even while pedaling. Especially when downshifting on climbs or shifting gears to respond to an attack, there's minimal shift shock, maintaining your riding rhythm.\u003c\/p\u003e\n\u003cp\u003eThe 11-30T is recommended for races and predominantly flat rides, while the 11-34T is ideal for hill climbs and long rides. The fact that some wheels can still use an 11-speed freehub body is also a welcome point.\u003c\/p\u003e\n\u003cp\u003eThis 12-speed sprocket is a highly refined product that truly allows you to experience the shifting performance characteristic of the latest ULTEGRA.\u003c\/p\u003e","brand":"SHIMANO","offers":[{"title":"11-30T \/ In-store stock","offer_id":50119094239507,"sku":"4550170849894","price":14081.0,"currency_code":"JPY","in_stock":false},{"title":"11-30T \/ Manufacturer取り寄せ（約10日）","offer_id":50119094305043,"sku":"oty-4550170849894","price":14081.0,"currency_code":"JPY","in_stock":true},{"title":"11-34T \/ In-store stock","offer_id":50119094272275,"sku":"4550170849887","price":14081.0,"currency_code":"JPY","in_stock":false},{"title":"11-34T \/ Manufacturer取り寄せ（約10日）","offer_id":50119094337811,"sku":"oty-4550170849887","price":14081.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/4237\/2883\/files\/1_3149e42f-abf8-485c-b640-db14de519885.jpg?v=1732508501","url":"https:\/\/store-eirin-jp.com\/en\/products\/cs-r8101-12","provider":"京都の自転車屋 CYCLE SHOP eirin ＆ サイクルハテナ","version":"1.0","type":"link"}