{"product_id":"shimano-deore-xt-cs-m8100-12-speed-cassette-10-51t","title":"Shimano Deore XT CS-M8100 12-Speed Mountain Bike Cassette 10-51T Micro Spline HYPERGLIDE+ — Wide-Range MTB\/E-MTB","description":"\u003cp\u003eThe Shimano Deore XT CS-M8100 is a wide-range 12-speed mountain bike cassette built around Shimano's HYPERGLIDE+ tooth profile and MICRO SPLINE freehub standard. Rider-tuned gear steps deliver smooth, precise shifting up and down the block — even under full pedaling load — making it one of the best-value performance drivetrains in mountain biking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Freehub compatibility:\u003c\/strong\u003e This cassette requires a \u003cstrong\u003eShimano MICRO SPLINE\u003c\/strong\u003e freehub body. It will \u003cstrong\u003enot\u003c\/strong\u003e fit standard HG (Hyperglide) freehubs. Please confirm your hub before ordering.\u003c\/p\u003e\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Shimano Deore XT CS-M8100\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 10-51T (wide 510% range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCog combination:\u003c\/strong\u003e 10-12-14-16-18-21-24-28-33-39-45-51T\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreehub type:\u003c\/strong\u003e Shimano MICRO SPLINE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible chain:\u003c\/strong\u003e Shimano 12-speed HG chain (CN-M8100 \/ M9100 series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 470 g (16.6 oz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver \/ Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Beam Spider with alloy carrier and alloy lockring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnology Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHYPERGLIDE+:\u003c\/strong\u003e Redesigned shift ramps and pickup points allow fast, smooth shifts under load in both directions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMICRO SPLINE:\u003c\/strong\u003e Smaller, more widely distributed splines enable a 10-tooth top cog and limit cog damage on the freehub body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeam Spider:\u003c\/strong\u003e Light, stiff construction reduces cassette inertia for faster acceleration and improved chain security.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eBuilt for XC, trail, and enduro riders who want a tight mid-range for efficient pedaling plus a 51T bail-out gear for steep climbs. The CS-M8100 also meets Shimano's durability requirements for \u003cstrong\u003eE-MTB\u003c\/strong\u003e applications, so it stands up to the higher torque of motor-assisted riding.\u003c\/p\u003e\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Shimano CS-M8100 12-speed cassette sprocket set (10-51T)\u003c\/li\u003e\n\u003cli\u003e1 x alloy lockring\u003c\/li\u003e\n\u003c\/ul\u003e\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\u003c\/ul\u003e","brand":"Shimano","offers":[{"title":"Default Title","offer_id":52906260791407,"sku":"ICSM8100051","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8840\/1263\/files\/XT_ICSM8100051_05.jpg?v=1780997069","url":"https:\/\/www.brinvo.com\/products\/shimano-deore-xt-cs-m8100-12-speed-cassette-10-51t","provider":"BrinVO","version":"1.0","type":"link"}