SRAM, Bosch DU38 T-Type, Chainring, Teeth: 36, Speed: 12, BCD: Direct Mount Bosch DU38, Steel, Black

SRAM, 42T, 10 sp, BCD 120mm, 4-Bolt, All 28/42, Outer Chainring, For L-pin GXP 2x10, Aluminum, Black, 11.6215.188.240

SRAM, X-SYNC Eagle Steel 3mm F1, Chainring, Teeth: 30, Speed: 12, BCD: Direct Mount SRAM 3 Bolt, Bolts: 3, Steel, Black

SRAM, T-Type Brose A1, Chainring, Teeth: 34, Speed: 12, BCD: Direct Mount

SRAM, X-SYNC 2 107mm, Chainring, Teeth: 42, Speed: 12, BCD: 107, Bolts: 4, Single, Aluminum, Black

Shimano, Tiagra FC-4700, Chainring, Teeth: 50, Speed: 10, BCD: 110, Bolts: 4, Outer, Aluminum, Grey, Y1RC98050