R-series rear derailleurs are designed to work with 7, 8 ,9, and 10-speed Shimano-compatible road shifters. These R9 rear derailleurs combine the benefits of R10 and R8 rear derailleurs: compatibility friendly, weight saving, and robust.
The SHIMANO ALIVIO M3100 rear derailleur delivers a low profile design that lets you ride aggressively with fewer interruptions thanks to its SHIMANO SHADOW design.
The updated Shimano Deore M6000 rear derailleur is designed for aggressive trail riding and uses Shimano Shadow RD Plus for improved chain stability and retention.
Leveraging the legendary history of SRAM shifting, the X5 rear derailleur provides incredible shifting speed and precision EXACT ACTUATION™ technology eliminates slop and shifting variation.