{"product_id":"shimano-rt-em910-rotor","title":"Shimano RT-EM910 Rotor","description":"\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003eShimano RT-EM910 Rotor\u003c\/strong\u003e is engineered specifically for use with Shimano's STEPS e-bike drivetrain systems, where the added weight and motor-assisted speeds place greater thermal demands on braking components than a standard bicycle setup. Shimano addresses this directly with their Ice Technologies Freeza construction — a multi-layer aluminum and stainless steel rotor design intended to dissipate heat more aggressively than conventional rotors, keeping braking performance consistent on long descents or repeated stops under load.\u003c\/p\u003e\n\n\u003cp\u003eMounting is via Shimano's centerlock standard, which keeps installation and wheel swaps straightforward. The RT-EM910 is available in both \u003cstrong\u003e180mm and 203mm diameters\u003c\/strong\u003e, giving you the option to match rotor size to your fork and frame specifications — or to prioritize additional heat capacity with the larger 203mm option, which is particularly relevant for heavier e-bike builds used on hilly terrain.\u003c\/p\u003e\n\n\u003ch3\u003eShimano RT-EM910 Rotor Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003eCompatibility: Shimano STEPS e-bike systems (STEPS 7000 series)\u003c\/li\u003e\n  \u003cli\u003eAvailable diameters: 180mm, 203mm\u003c\/li\u003e\n  \u003cli\u003eMounting interface: Centerlock\u003c\/li\u003e\n  \u003cli\u003eTechnology: Ice Technologies Freeza heat management construction\u003c\/li\u003e\n  \u003cli\u003eMaterial: Multi-layer aluminum and stainless steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"No Color \/ 180mm","offer_id":43520357204012,"sku":"IRTEM910ME","price":110.0,"currency_code":"USD","in_stock":true},{"title":"No Color \/ 203mm","offer_id":43520357236780,"sku":"IRTEM910LE","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/shimano-rt-em910-rotor-4580424.jpg?v=1771297516","url":"https:\/\/ricycles.com\/products\/shimano-rt-em910-rotor","provider":"RA Cycles","version":"1.0","type":"link"}