The Shimano CRM81 XT 1X 11 speed single chainrings are the perfect replacement for worn or damaged chainrings
Shimano's class leading chainrings offer the optimum balance of light weight and rigidity for precise shifts even under high loads
Featuring Shimano DYNAMIC CHAIN ENGAGEMENT+ chainring technology that has fully optimised the chainring teeth profile to give you better chain retention and smoother pedalling 
Designed to work with Shimano’s 11-speed HG chain providing more efficiency and improved power transfer
Genuine Shimano replacement chainrings for the FC-M8000 1X cranksets available in 34T, 32T, and 30T manufactured with steel teeth and CFRP body for increased durability
Shimano part numbers: 34T - SMCRM81A4, 32T - SMCRM81A2, 30T - SMCRM81A0
Compatible chain Shimano HG 11-speed