Shimano Ultegra Di2 RD-6870 Electronic Rear Derailleur Used

Shimano Ultegra RD-R8050 SS Rear Derailleur 11-Speed Di2 Electronic Used

Campagnolo Record 12s Rear Derailleur Road Bike Used 12 Speed

Shimano Dura-Ace RD-R9150 Rear Derailleur 11-Speed Di2 Electronic Used

Shimano Dura-Ace Di2 RD-R9150 Rear Derailleur Electronic Used

Cannondale Vintage 58cm, 700c Blue Road Bike Mavic derailleur Shimano 600 levers

Shimano Dura-Ace RD-7402 Rear Derailleur 8-Speed Used