Shimano Sora FC-R3000 Sora 9 Speed Double Inner Chainring 34T For 50-34T Boxed

Chainring Bolts. Shimano Ultegra FC-R8000 11 Speed Double Outer Chainring 53T For 53-39T. Stronglight Dural 5083 9/10 Speed Silver Chainring 130mm BCD Silver 48T. Burgtec 3mm Offset Thick Thin Chainring For SRAM 3-Bolt 32T In Rhodium Silver.