Shimano, Dura Ace FC-R9100, 50T Chainring, MS, 11sp, BCD: 110, Aluminum, Black

Shimano, Y1LD22000, 22T, 9sp, BCD: 64mm, 4 Bolt, Deore FC-M590, Inner Chainring, For 22/32/44, Steel, Black

SRAM, GX Eagle T-Type DM, Chainring, Teeth: 30, Speed: 12, BCD: Direct Mount SRAM 8 Bolt, Aluminum, Grey

Wheels Manufacturing, Shimano DM T-Type Outboard, Chainring, Teeth: 30, Speed: 12, BCD: Direct Mount Shimano, Single, 7075 Aluminum, Black

FSA, 50T, 10/11sp., BCD: 110mm, 5 Bolts, Super Road, Outer Chainring, For Double, Aluminum, Black, 371-0250A