Shimano Rear Derailleurs Cable Adjusting Bolt Unit RD-R8000/R3000/6800/R7000

Shimano Ultegra RD-6700 Rear Derailleur 10 Speed Road Gravel Touring

Shimano Dura Ace RD-7900 Rear Derailleur Barrel Adjuster

microSHIFT Centos Rear Derailleur - 10 Speed, Short Cage, Black, Shimano 4700 Co

shimano ultegra rd-6700 rear derailleur (pulley wheels hard to turn)

Shimano Derailleur Ultegra R8000 11 Speed Rear (RDR8000)

microSHIFT Durable R8 Rear Derailleur, 7,8,9 Speed, Long Cage, Compatible with S

Shimano Ultegra RD-6700 10 Speed Rear Derailleur