Shimano Ultegra R8100 12-Speed 50t Asymmetric Aluminum Chainring - Lightweight,

Shimano Ultegra FC-R8100 52t 12-Speed Asymmetric Aluminum Chainring, Black, 110

Shimano Ultegra FC-R8100 12-Speed Chainring - 50t, Asymmetric 110 BCD, Black, NK

Shimano Ultegra R8100 52T 12-Speed Asymmetric Chainring | Lightweight Aluminum

Shimano Ultegra FC-R8100 12-Speed Chainring - 36t, Asymmetric 110 BCD, Black, NK

Shimano Ultegra FC-R8100 12-Speed Chainring - 50t, Asymmetric 110 BCD, Black, NK

SHIMANO ULTEGRA 12-speed Chainring 50T for FC-R8100/FC-R8100-P

Shimano Ultegra FC-R8100 12-Speed Chainring - 52t, Asymmetric 110 BCD, Black, NK