{"product_id":"corona-miche-x2-r81-110bcd-54t","title":"Miche X2 R81 110bcd chainring - 54T","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 riders seeking \u003cstrong\u003emaximum drivetrain efficiency\u003c\/strong\u003e in power transfer. Specifically designed for \u003cstrong\u003eShimano Ultegra R8100\u003c\/strong\u003e cranksets, this 52-tooth chainring with \u003cstrong\u003e110mm BCD\u003c\/strong\u003e ensures precise, responsive power transfer. The combination of innovative materials – \u003cstrong\u003eAL 7075-T6 aluminum\u003c\/strong\u003e CNC-machined and structural 3K carbon – creates a construction that delivers extreme lightness and uncompromising stiffness. Every structural detail has been optimized to provide flawless performance, سواء whether you use an integrated power meter or a standard setup. Compatibility with Miche R12 inner rings and original Shimano components enables 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 the aerospace-grade aluminum, creating a construction synergy that minimizes energy loss during pedaling. With a weight of 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 52-tooth profile provides a balanced drivetrain ratio for speed and acceleration. \u003cstrong\u003eCompatibility with 12-speed chains\u003c\/strong\u003e ensures seamless integration with the latest 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 riders competing in road races and time trials. CNC machining of the aluminum guarantees extremely precise manufacturing tolerances, minimizing vibrations and oscillations during high-cadence pedaling. Also available in 50- and 54-tooth configurations, this chainring allows you to customize the setup according to the elevation profile and individual preferences. The \u003cstrong\u003eefficient power transfer\u003c\/strong\u003e is especially evident during 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 long-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\u003eToothing\u003c\/strong\u003e: 54 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: 50T and 52T with the same construction philosophy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing\u003c\/strong\u003e: CNC precision for extreme manufacturing tolerances.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Miche","offers":[{"title":"54 \/ Black","offer_id":54825315172698,"sku":"CGX2LB8054b00","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:\/\/www.all4cycling.com\/en\/products\/corona-miche-x2-r81-110bcd-54t","provider":"All4cycling ","version":"1.0","type":"link"}