{"product_id":"shimano-xtr-160mm-disc-brake-rotor-premium-stopping-power","title":"Shimano XTR RT-MT900-S Disc Brake Rotor 160mm - High-Heat Dissipation","description":"\u003cp\u003eOur review of the Shimano XTR RT-MT900-S Disc Brake Rotor finds it best suited for riders who demand consistent stopping power on long, technical descents. The single biggest reason to buy is its Ice Technologies Freeza three-layer construction, which places an aluminum core between two stainless steel braking surfaces to rapidly dissipate heat and reduce fade, delivering reliable performance and longer pad life under sustained braking.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIce Technologies Freeza construction:\u003c\/strong\u003e A three-layer design with an aluminum core and stainless steel braking surfaces removes heat faster for steadier braking on long descents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenterlock attachment:\u003c\/strong\u003e Centerlock design and included lockring make installation straightforward and secure on compatible hubs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized compatibility:\u003c\/strong\u003e Specifically tuned for use with XTR M9100 and M9120 calipers to preserve modulation and pad contact under demanding conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple diameters:\u003c\/strong\u003e Available in 140mm, 160mm, 180mm, and 203mm so riders can choose rotor size to match trail type and braking leverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum core and lockring:\u003c\/strong\u003e The aluminum core and lock ring reduce weight while aiding thermal conductivity compared with single-material rotors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes lockring:\u003c\/strong\u003e Comes ready to fit with the required centerlock lockring for immediate installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe XTR RT-MT900-S rotor is ideal for aggressive trail and enduro riders who face long, steep descents and need brakes that maintain power when temperatures climb. Riders using Shimano XTR M9100 or M9120 systems will see the most benefit from the rotor's cooling-focused design and compatibility tuning.\u003c\/p\u003e\n\u003cp\u003eLess aggressive riders or those on budget builds who rarely push brakes into high-heat conditions may prefer a simpler, lower-cost rotor; cross-country racers who prioritize absolute minimal rotating weight might also consider lighter race-specific options.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExcellent heat dissipation thanks to the aluminum core, which keeps braking more consistent on long descents.\u003c\/li\u003e\n\u003cli\u003eDesigned for Shimano XTR calipers, resulting in predictable modulation and pad life when paired correctly.\u003c\/li\u003e\n\u003cli\u003eCenterlock fitment and included lockring make installation fast and tidy on compatible hubs.\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple diameters to suit a wide range of riding styles and braking needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrimarily optimized for XTR M9100\/M9120 systems, so benefits are most pronounced with those calipers.\u003c\/li\u003e\n\u003cli\u003eThe three-layer construction adds complexity and cost compared with plain steel rotors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial (core)\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial (braking surface)\u003c\/td\u003e\n\u003ctd\u003eStainless steel (two layers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLock ring\u003c\/td\u003e\n\u003ctd\u003eAluminum (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment type\u003c\/td\u003e\n\u003ctd\u003eCenterlock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eShimano XTR M9100 and M9120 calipers, Shimano Ice-Tech pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable diameters\u003c\/td\u003e\n\u003ctd\u003e140mm, 160mm, 180mm, 203mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Shimano XTR RT-MT900-S rotor is a strong choice for riders who need durable, consistent braking under heavy use; its Ice Technologies Freeza construction and centerlock fit make it especially valuable for XTR-equipped bikes where heat management matters. It represents good value for riders prioritizing braking performance and pad life over the lowest possible cost.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this rotor compatible with my XTR brakes?\u003c\/strong\u003e\u003cbr\u003eThe rotor is optimized for Shimano XTR M9100 and M9120 calipers and pairs best with those systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the rotor come with the lockring?\u003c\/strong\u003e\u003cbr\u003eYes, the RT-MT900-S includes the aluminum centerlock lockring for installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich diameter should I choose?\u003c\/strong\u003e\u003cbr\u003eChoose 160mm for allaround trail use; 140mm for lighter bikes and less aggressive terrain; 180mm or 203mm for heavier riders or long, steep descents requiring more stopping power.\u003c\/p\u003e","brand":"SHIMANO","offers":[{"title":"Default Title","offer_id":46777887391963,"sku":"B084GPNYCS","price":81.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71GPj4FEmVL._AC_SL1200_6dabc95e-efee-4e5f-9218-d9218ec86c65.jpg?v=1747541032","url":"https:\/\/gearmusthave.com\/products\/shimano-xtr-160mm-disc-brake-rotor-premium-stopping-power","provider":"GearMustHave","version":"1.0","type":"link"}