Shimano Ultegra Di2 RD-6870 Electronic Rear Derailleur Used

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

Shimano Ultegra RX RD-RX805-GS Rear Derailleur Di2 Electronic New

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

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

Shimano 105 Di2 RD-R7150 Electric Rear Derailleur 12-Speed Used

Shimano Ultegra ST-R8150 STI Lever Set 2x12 Speed Di2 Left Right Used