Rear Derailleur Clutch Cover Set Switch And Cap – For M865M ADVENT ADVENT X Rear Derailleurs

microSHIFT Rear Derailleur Clutch Cover Set Switch And Cap - For M865M ADVENT and ADVENT X Rear Derailleurs. These repair parts allow you to service microSHIFT clutch rear derailleurs by replacing the engagement teeth or tension assembly as needed.