SRAM Red Yaw 10-Speed Hidden Bolt Chainring

Tooth shapes and shift pins are designed specifically for use with SRAM Yaw front derailleurs.  Compatible with the SRAM Red Yaw front derailleur 7000 series aluminum provides strength and durability Inner rings have two installation positions to work with either type of outer ring 34 Tooth ,Use with 50T  Color: Black Material: Aluminum Tooth Count: 34 Ring Position/Type: Inner Drivetrain Speeds: 10 Defined Color: Black Chainring BCD: 110 39 Tooth , Use with 53T  Color: Black Material: Aluminum Tooth Count: 39 Ring Position/Type: Inner Drivetrain Speeds: 10 Defined Color: Black Chainring BCD: 130