SRAM X-Sync chainrings feature tall teeth with alternating tooth profiles that hold the chain amazingly well and still provide space for mud to clear.

Full CNC AL rings

Ring Position/Type	Chain Retaining Single Ring
Tooth Count	40
Drivetrain Speeds	11
Chainring BCD	110
Color	Silver/Black
Defined Color	Silver
Teeth Count	40T
Asymmetric	False