SRAM, Red E1 1x DM, Chainring, Teeth: 40, Speed: 12, BCD: Direct Mount SRAM 8 Bolt

SRAM, 42T, 11sp, BCD: 110mm, 5 Bolts, X-Sync, Outer Chainring, For X-Sync, Aluminum, Grey, 11.6218.015.002

SRAM, Red E1 Aero, Chainring, Teeth: 46, Speed: 12/13, BCD: Direct Mount SRAM 8 Bolt, Black

SRAM, S1000 Steel 8 Bolt, Chainring, Teeth: 34, Speed: 12, BCD: Direct Mount, Bolts: 8, Steel, Black