Shimano, Tiagra FC-4700, Chainring, Teeth: 34, Speed: 10, BCD: 110, Bolts: 4, Inner, Aluminum, Grey, Y1RC34000

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, 4x2 Chainring Bolt Kit, Chainring Hardware, Black, Kit

Shimano, XT SM-CRM86, Chainring, Teeth: 30, Speed: 12, Front, Aluminum, Black, ISMCRM86A0

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

SRAM, X-SYNC 2, 36 Chainring, 12sp, BCD: 104, Aluminum, Black