{"product_id":"corona-miche-x2-r81-powermeter-110bcd-52t","title":"Miche X2 R81 powermeter 110bcd chainring - 52T","description":"\u003ch3\u003eMiche X2 R81 Chainring: Power Transfer and Maximum Efficiency\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMiche X2 R81 chainring\u003c\/strong\u003e is the ideal solution for those seeking \u003cstrong\u003etop-level performance\u003c\/strong\u003e in pedaling power transfer. Specifically designed for \u003cstrong\u003eShimano Ultegra R8100 cranksets\u003c\/strong\u003e, this 52-tooth chainring offers three available configurations (50, 52, and 54 teeth) to suit different gearing needs. The ring combines \u003cstrong\u003eextreme stiffness\u003c\/strong\u003e with superior drivetrain responsiveness, ensuring that every watt generated by the rider is transferred with absolute precision to the chain and the rest of the drivetrain. Compatibility with \u003cstrong\u003eintegrated power meters\u003c\/strong\u003e makes it versatile for athletes who require advanced performance monitoring.\u003c\/p\u003e\n\u003ch3\u003eHybrid Construction: Carbon and CNC-Machined Aluminum\u003c\/h3\u003e\n\u003cp\u003eThe chainring structure uses a unique combination of materials to optimize the weight-to-stiffness ratio. A \u003cstrong\u003eCNC-machined AL 7075-T6 aluminum\u003c\/strong\u003e plate is integrated with a structural \u003cstrong\u003e3K carbon\u003c\/strong\u003e plate, creating a configuration that minimizes total weight while maintaining \u003cstrong\u003emaximum torsional stiffness\u003c\/strong\u003e. This hybrid design is the result of meticulous engineering and represents an optimal balance between lightness and resistance to the stresses generated during pedaling. CNC machining ensures precise tolerances and a high build quality, essential factors for long-term durability and consistent performance over time.\u003c\/p\u003e\n\u003ch3\u003eCompatibility and Versatility: Universal Design for Modern Cranksets\u003c\/h3\u003e\n\u003cp\u003eThe Miche X2 R81 chainring is compatible with both \u003cstrong\u003eMiche R12 chainrings\u003c\/strong\u003e and original \u003cstrong\u003eShimano Ultegra R8100\u003c\/strong\u003e components, offering flexibility in drivetrain setup. The dedicated design allows use on cranksets with or without an \u003cstrong\u003eintegrated power meter\u003c\/strong\u003e, adapting to multiple setups without performance compromises. With a 110 mm BCD and 4 mounting holes, installation is quick and secure on compatible cranksets. The Power Meter Ready version adds further versatility for those who want to integrate a power-measuring system into their bike at a later stage.\u003c\/p\u003e\n\u003ch3\u003eTechnical Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 170 g (\u003cstrong\u003ePower Meter Ready\u003c\/strong\u003e version).\u003c\/li\u003e\n\u003cli\u003eSpeed: 12-speed.\u003c\/li\u003e\n\u003cli\u003eMaterial: \u003cstrong\u003e3K Carbon + CNC-machined AL 7075-T6 Aluminum\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eBCD: 110 mm with 4 mounting holes.\u003c\/li\u003e\n\u003cli\u003eCompatibility: \u003cstrong\u003eShimano Ultegra R8100\u003c\/strong\u003e and Miche cranksets.\u003c\/li\u003e\n\u003cli\u003eTooth count: 52 teeth (additional configurations: 50 and 54 teeth).\u003c\/li\u003e\n\u003cli\u003eChainring compatibility: Miche R12 and original Shimano.\u003c\/li\u003e\n\u003cli\u003eDesign: Compatible with integrated or external \u003cstrong\u003epower meters\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFinish: Surface treated for strength and durability.\u003c\/li\u003e\n\u003cli\u003eApplication: High-performance road and gravel bikes.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Miche","offers":[{"title":"52 \/ Black","offer_id":54825330311514,"sku":"cgx2lb8p52b00","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-powermeter-110bcd-54T-All4cycl-0.webp?v=1771009465","url":"https:\/\/www.all4cycling.com\/en\/products\/corona-miche-x2-r81-powermeter-110bcd-52t","provider":"All4cycling ","version":"1.0","type":"link"}