IRDM8200GS - Shimano Deore XT RD-M8200-GS rear derailleur for 12-speed drivetrains, with direct mount, 45T maximum and 36T total capacity. - 4550170319809

IRDM8200SGS - Shimano Deore XT RD-M8200-SGS rear derailleur for 12-speed drivetrains, with direct mount, long cage, max 51T and 51T total capacity. - 4550170319823

IRDR7100 - Shimano 105 RD-R7100 rear derailleur for 12-speed systems, with direct mount, max. 36T and 41T total capacity. - 4550170819019

IRDRX717SGSA - Shimano GRX Di2 RD-RX717-SGS rear derailleur for 1 x 12 speed, max 45–51T. - 4550170078614

IRDRX820 - Shimano RD-RX820 GRX rear derailleur for 2 x 12-speed drivetrains, with long cage and max 36T capacity. - 4550170303617

IRDRX822GS - Shimano RD-RX822 GS GRX rear derailleur for 1 x 12-speed drivetrains, with medium cage and max 45T capacity. - 4550170303631

00.7518.178.000 - SRAM Apex Eagle rear derailleur for 12-speed drivetrains, compatible with cassettes up to 52T. - 710845887529

00.7518.177.000 - SRAM Apex XPLR rear derailleur for 12-speed drivetrains, compatible with 10–44T cassettes. - 710845887512