{"product_id":"corona-miche-x2-r81-110bcd-50t","title":"Miche X2 R81 110bcd chainring - 50T","description":"\u003ch3\u003eMiche X2 R81 110bcd Chainring for High-Efficiency Drivetrain\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMiche X2 R81 chainring\u003c\/strong\u003e is the ideal solution for those seeking \u003cstrong\u003emaximum power transfer efficiency\u003c\/strong\u003e. Specifically designed for \u003cstrong\u003eShimano Ultegra R8100\u003c\/strong\u003e cranksets, this 50-tooth chainring with \u003cstrong\u003e110mm BCD\u003c\/strong\u003e ensures precise and responsive power delivery. The combination of innovative materials – \u003cstrong\u003eAL 7075-T6 aluminum\u003c\/strong\u003e CNC-machined and structural 3K carbon – creates a construction that combines extreme lightness with uncompromising stiffness. Every design detail has been optimized to deliver flawless performance, whether you use an integrated power meter or a standard setup. Compatibility with Miche R12 inner rings and original Shimano components allows versatile setups suited to different riding needs.\u003c\/p\u003e\n\u003ch3\u003eConstruction Features and Technical Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003estructural stiffness\u003c\/strong\u003e of the Miche X2 R81 chainring is ensured by the meticulous engineering that defines every product from the brand. The \u003cstrong\u003e3K carbon\u003c\/strong\u003e plate integrates perfectly with aerospace-grade aluminum, creating a structural synergy that minimizes energy losses while pedaling. At just 170 grams in the Power Meter Ready version, this chainring is compatible with power measurement systems without requiring structural modifications. The 4-bolt design with \u003cstrong\u003e110mm BCD\u003c\/strong\u003e fits modern cranksets, while the 50-tooth profile offers a balanced gearing ratio for speed and acceleration. \u003cstrong\u003eCompatibility with 12-speed chains\u003c\/strong\u003e ensures perfect integration with latest-generation Shimano groupsets, maintaining shifting precision and long-term durability.\u003c\/p\u003e\n\u003ch3\u003ePerformance and Racing Applications\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003edrivetrain responsiveness\u003c\/strong\u003e of the Miche X2 R81 chainring makes it particularly suitable for road racing and time trial cyclists. CNC machining of the aluminum guarantees extremely precise manufacturing tolerances, minimizing vibrations and oscillations during high-cadence pedaling. Also available in 52- and 54-tooth configurations, this chainring allows you to tailor the setup to the course profile and individual preferences. The \u003cstrong\u003eefficient power transfer\u003c\/strong\u003e is especially evident in sprints and accelerations, where every watt generated is transferred directly to the rear wheel without loss. Thanks to Miche's construction philosophy, which prioritizes quality and detail, the chainring maintains consistent performance over time, making it a lasting investment for those who refuse to compromise on the quality of their bike.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooth count\u003c\/strong\u003e: 50 teeth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBCD\u003c\/strong\u003e: 110mm with 4 mounting holes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 3K Carbon + CNC-machined AL 7075-T6 Aluminum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 170 grams (Power Meter Ready version).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain speed\u003c\/strong\u003e: Compatible with 12-speed drivetrain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrankset compatibility\u003c\/strong\u003e: Shimano Ultegra R8100 and Miche.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInner rings\u003c\/strong\u003e: Compatible with Miche R12 and original Shimano components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther available tooth counts\u003c\/strong\u003e: 54T and 52T with the same construction philosophy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachining\u003c\/strong\u003e: CNC precision for extreme manufacturing tolerances.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Miche","offers":[{"title":"50 \/ Black","offer_id":54931232194906,"sku":"cgx2lb8050b00","price":174.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0532\/7139\/6534\/files\/Corona-Miche-X2-R81-110bcd-52T-All4cycling-1.jpg?v=1777316970","url":"https:\/\/maisoncalyx.shop\/en\/products\/corona-miche-x2-r81-110bcd-50t","provider":"All4cycling ","version":"1.0","type":"link"}