SRAM, X-SYNC 2 Steel 6mm, Chainring, Teeth: 30, Speed: 11/12, BCD: Direct Mount, Single, Steel, Black

SRAM, X-SYNC 2 X01 Eagle Polar Grey, Chainring, Teeth: 30, Speed: 12, BCD: Direct Mount, Single, Alloy, Offset 6mm, Grey

Truvativ, 52T, 10 sp, BCD 130mm, 5-Bolt, Outer Chainring, For 30/42/52, Steel, Black, 11.6215.104.000

SRAM, Eagle T-Type DM XX 3mm Offset, Chainring, Teeth: 30, Speed: 12, BCD: Direct Mount, Aluminum, Black