These chainrings are designed for the Shimano Alivio FC-M4000 crankset.Chainring teeth combinations: 40-30-22T. Includes chain protector. Item Specifications: Drivetrain Speeds, 9, Ring Position/Type, Inner, Chainring BCD, 64 Shimano Asymmetric, Color, Black, Defined Color, Black, Tooth Count, 22,.