{"product_id":"shimano-rt-mt800-disc-rotor-external-spline-type","title":"Shimano RT-MT800 Disc Rotor - External Spline Type","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eShimano RT-MT800 Disc Rotor - External Spline Type\u003c\/strong\u003e is a heat-managing rotor built around Shimano's IceTech Freeza construction — a three-layer aluminium-clad steel design engineered to pull heat away from the braking surface and reduce fade on long descents or repeated hard stops. Originally developed for XTR-level builds, it carries that same thermal performance and braking consistency across a wide range of compatible Shimano groupsets, from mountain to road.\u003c\/p\u003e\n\n\u003cp\u003eThe external spline interface is straightforward to install and pairs with Shimano's Centre Lock hubs. Four size options — 140mm through 203mm — mean it suits everything from cross-country race builds running minimal rotor diameters to trail and enduro bikes where additional stopping leverage makes a real difference on steep terrain.\u003c\/p\u003e\n\n\u003ch3\u003eShimano RT-MT800 Disc Rotor - Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount type:\u003c\/strong\u003e Centre Lock (External Spline)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 140mm, 160mm, 180mm, 203mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e IceTech Freeza — aluminium-clad three-layer steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e XTR, XT, and compatible 12-speed Shimano road groups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"Black \/ 140mm","offer_id":43520338198572,"sku":"IRTMT800SSE","price":70.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 160mm","offer_id":43520338231340,"sku":"IRTMT800SE","price":70.0,"currency_code":"USD","in_stock":false},{"title":"Black \/ 180mm","offer_id":43520338264108,"sku":"IRTMT800ME","price":70.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ 203mm","offer_id":43520338296876,"sku":"IRTMT800LE","price":80.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/shimano-rt-mt800-disc-rotor-external-spline-type-7873995.jpg?v=1771297569","url":"https:\/\/ricycles.com\/products\/shimano-rt-mt800-disc-rotor-external-spline-type","provider":"RA Cycles","version":"1.0","type":"link"}