Full Speed Ahead FSA N10/11 Super Road Bicycle Chainring - 46T/110mm - 371-0246A Precision CNC machined AL70756 alloy N-11 chainrings are compatible with all 10 speed drivetrains, and compatible with FSA, SRAM and Shimano 11 speed drivetrains N-10 chainrings are compatible with Shimano, SRAM and Campagnolo Ultra Narrow 10-Speed drive trains S9/C10 chainrings are compatible with Shimano 9 speed and Campagnolo C10 10-Speed Compatible with all 10 speed drivetrains, compatible with SRAM and Shimano 11 speed drivetrains