{"product_id":"corona-miche-x2-rd-r81","title":"Miche X2 RD R81 Chainring","description":"\u003cdiv\u003eWith\u003cspan\u003e \u003c\/span\u003eX2 RD\u003cspan\u003e \u003c\/span\u003eIt's not just about pushing harder: it's about maximizing every single watt produced, transforming energy into speed, feeling the difference with every pedal stroke.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe Miche engineering process represents a rigorous synthesis of advanced design and construction quality at the highest standards.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eEvery watt saved is not just efficiency: it is time, it is performance, it is result.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eThe\u003c\/span\u003eX2 RD R92 and the X2 RD R81\u003cspan\u003e are born from the same vision but specialize for different targets.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe first was specifically developed for Dura-Ace 9200 cranksets, offering the widest range with chainrings from 50 to 56 teeth (50, 52, 54, 55, 56). The second is developed for Ultegra 8100 cranksets with three targeted configurations: 50, 52, and 54 teeth, maintaining the same construction philosophy.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eBoth are compatible with Miche R12 internal gears as well as original Shimano ones, offering different setups for every need.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eThe key to this gear lies in its meticulous engineering and great attention to detail that we have always put into our products: a plate in aluminum AL 7075-T6\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eCNC machined merges with a structural plate in\u003cspan\u003e \u003c\/span\u003e3K carbon, creating an alchemy to form a unique combination that guarantees extreme stiffness, lightness, and a transmission with top-level responsiveness.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eThe dedicated design makes them compatible with cranksets with or without power meter, ensuring flawless performance in every configuration. \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul class=\"flex flex-col mt-10\"\u003e\n\u003cli class=\"py-4 box-border flex flex-wrap tb:flex-nowrap items-baseline gap-x-4 border-t border-grey-200 last:border-b\"\u003e\u003cspan class=\"font-medium text-tiny uppercase w-full tb:w-1\/3 shrink-0\"\u003eSpeed: 12s\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"py-4 box-border flex flex-wrap tb:flex-nowrap items-baseline gap-x-4 border-t border-grey-200 last:border-b\"\u003e\u003cspan class=\"font-medium text-tiny uppercase w-full tb:w-1\/3 shrink-0\"\u003eMaterial: Carbon + AL 7075 T6 \/ CNC\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"py-4 box-border flex flex-wrap tb:flex-nowrap items-baseline gap-x-4 border-t border-grey-200 last:border-b\"\u003e\u003cspan class=\"font-medium text-tiny uppercase w-full tb:w-1\/3 shrink-0\"\u003eBCD: 110 \/ 4 holes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"py-4 box-border flex flex-wrap tb:flex-nowrap items-baseline gap-x-4 border-t border-grey-200 last:border-b\"\u003e\n\u003cspan class=\"font-medium text-tiny uppercase w-full tb:w-1\/3 shrink-0\"\u003eMiche crankset compatibility: SHIMANO Ultegra R8100 \u003c\/span\u003e\n\u003cdiv class=\"tw-text font-light text-base w-full tb:w-auto flex-shrink\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Miche","offers":[{"title":"50","offer_id":56542882398588,"sku":"CGX2LB8050B00","price":169.0,"currency_code":"EUR","in_stock":true},{"title":"54","offer_id":56542882431356,"sku":"CGX2LB8054B00","price":169.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0756\/2051\/6162\/files\/x2.jpg?v=1774536498","url":"https:\/\/evolutionbikes.it\/en\/products\/corona-miche-x2-rd-r81","provider":"Evolution Bikes IT","version":"1.0","type":"link"}