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The Shimano FC-R8100 Ultegra Chainring 50T-NK is designed for FC-8100 and FC-8100-P cranksets, featuring 50 teeth and a 110 BCD for 12-speed Shimano Ultegra systems. Made from durable aluminum and carbon fiber reinforced plastic, it balances strength and lightweight performance, ideal for cyclists aiming to improve their drivetrain. SKU: Y0NG98010.