{"product_id":"shimano-105-cs-r7101-12-speed-cassette-11-34t","title":"Shimano 105 CS-R7101 12-Speed Road Bike Cassette 11-34T HYPERGLIDE+ HG — Fits 11-Speed \u0026 12-Speed Freehubs","description":"\u003cp\u003eThe Shimano 105 CS-R7101 is a wide-range 12-speed road cassette built on Shimano's HYPERGLIDE+ tooth profile — delivering fast, seamless shifts under load whether you're sprinting on the flats or grinding up a climb. A refined 12-step gear progression keeps your cadence smooth and efficient across every situation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFreehub compatibility:\u003c\/strong\u003e The CS-R7101 fits \u003cstrong\u003eboth standard Shimano 11-speed road freehub bodies and 12-speed (HG L2) freehubs\u003c\/strong\u003e, so in most cases you can keep your existing road wheels. It pairs with Shimano 12-speed road drivetrains and an HG 12-speed road chain.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Shimano 105 CS-R7101 (R7100 series)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpeeds:\u003c\/strong\u003e 12-speed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGear range:\u003c\/strong\u003e 11-34T (wide-range road)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCog combination:\u003c\/strong\u003e 11-12-13-14-15-17-19-21-24-27-30-34T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFreehub type:\u003c\/strong\u003e Shimano HG — fits 11-speed \u0026amp; 12-speed road freehub bodies\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible chain:\u003c\/strong\u003e Shimano HG 12-speed road chain\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel cogs \/ aluminum lockring \u0026amp; carrier\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 361 g (12.7 oz)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnology Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHYPERGLIDE+:\u003c\/strong\u003e Computer-designed tooth profile with contoured shift gates for crisp, smooth shifts even under full pedaling load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRefined 12-step gearing:\u003c\/strong\u003e Close ratios for efficient cadence control plus a 34T climbing gear when the road tilts up.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight build:\u003c\/strong\u003e Largest sprockets on a lightweight alloy carrier; cut-away, drilled cogs reduce weight without sacrificing rigidity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eRoad and endurance riders running a Shimano 12-speed road group (105 R7100, Ultegra R8100, or Dura-Ace R9200 — Di2 or mechanical) who want a versatile, climb-friendly 11-34T range that bolts onto existing 11-speed road wheels.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Shimano 105 CS-R7101 12-speed cassette (11-34T)\u003c\/li\u003e\n  \u003cli\u003e1 x lockring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCondition \u0026amp; Shipping\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new in retail packaging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShips from:\u003c\/strong\u003e Ontario, California (US domestic)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEstimated delivery:\u003c\/strong\u003e 3–5 business days\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReturns:\u003c\/strong\u003e Free 30-day returns\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":52948582760559,"sku":"ICSR710112134","price":59.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8840\/1263\/files\/IMG_E1736.jpg?v=1778333983","url":"https:\/\/www.brinvo.com\/products\/shimano-105-cs-r7101-12-speed-cassette-11-34t","provider":"BrinVO","version":"1.0","type":"link"}