SRAM, Force E1 2x Thread Mount, Chainring, Teeth: 50/37, Speed: 12, BCD: Thread Mount, Black

Shimano, SLX SM-CRM75, Chainring, Teeth: 32, Speed: 12, BCD: Direct Mount, Aluminum/Composite/Steel, Grey

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, Force E1 2x Direct Mount, Chainring, Teeth: 48/35, Speed: 12, BCD: Direct Mount SRAM 8 Bolt, Black