Shimano Tiagra FC-4703 10-Speed Chainring - 39t, Asymmetric 110/74 BCD, Black, with Nut and Holder Black EA Chainrings

Y1RD98050 Shimano Tiagra FC-4703 10-Speed Chainring - 39t, Asymmetric 110/74 BCD, Black, with Nut and Holder Chainrings EA 74mm Black Ring Position/Type Middle Tooth Count 39 Drivetrain Speeds 10 Round or Oval Round Chainring BCD 74 Shimano Asymmetric Material Aluminum Color Black Defined Color Black