{"product_id":"shimano-rt-em810-disc-rotor-external-spline-type-180mm","title":"Shimano RT-EM810 Disc Rotor - External Spline Type 180mm","description":"\u003cdiv\u003e\n\u003cp\u003eE-bike braking puts rotors under real stress — more system weight, higher speeds, and longer sustained descents mean heat builds faster and dissipates slower than on a standard bicycle. The \u003cstrong\u003eShimano RT-EM810 Disc Rotor\u003c\/strong\u003e is engineered specifically for that environment, incorporating Shimano's Ice Technologies Freeza construction to draw heat away from the braking surface before it can compromise stopping power or pad feel. At 180mm, it gives you the swept area to handle the thermal demands of e-bike riding without fading under sustained load.\u003c\/p\u003e\n\n\u003cp\u003eThe external spline interface uses center lock mounting — a tool-assisted fit that seats securely, stays true under repeated heat cycles, and makes rotor swaps straightforward when the time comes.\u003c\/p\u003e\n\n\u003ch3\u003eShimano RT-EM810 Disc Rotor - Specs at a Glance\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 180mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting interface:\u003c\/strong\u003e Center lock (external spline)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTechnology:\u003c\/strong\u003e Ice Technologies Freeza heat management\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e E-bike specific\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Shimano","offers":[{"title":"No Color \/ 180mm","offer_id":43520357302316,"sku":"IRTEM810ME","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/shimano-rt-em810-disc-rotor-external-spline-type-180mm-2714427.jpg?v=1771297515","url":"https:\/\/ricycles.com\/products\/shimano-rt-em810-disc-rotor-external-spline-type-180mm","provider":"RA Cycles","version":"1.0","type":"link"}