SRAM, X-SYNC 2 107mm, Chainring, Teeth: 40, Speed: 12, BCD: 107, Bolts: 4, Single, Aluminum, Black

SRAM, X-Sync, 3mm offset, 36T, 12sp., BCD: Direct Mount, Single Chainring, Aluminum, Black

SRAM, X01/DH Chainring Bolt Kit Black Aluminum for X01 and X01DH

SRAM, X-SYNC 2 Steel 3mm, Chainring, Teeth: 30, Speed: 11/12, BCD: Direct Mount, Single, Steel, Black

SRAM, X-SYNC 2 X01 Eagle Polar Grey, Chainring, Teeth: 32, Speed: 12, BCD: Direct Mount, Single, Alloy, Offset 3mm, Grey