Shimano Ultegra RX805 11-Speed Rear Derailleur

The Shimano Ultegra RX805 11-Speed Rear Derailleur brings Shimanos chain stabilizing technology road cycling drivetrains, delivering smooth and precise shifting over technical terrain. It expands road bike capabilities, inspiring confidence on any surface and drives the evolution of road cycling to include greater elements of adventure. Experience the difference with the Ultegra RX805 Rear Derailleur!