Whether you kissed a rock on high speed descent or are upgrading your drivetrain, this rear derailleur will help you pedal up and power down. Outfitted with microSHIFT’s ratchet style clutch and big, tall-toothed pulleys, the Advent X keeps your shifts crisp and you chain right where it should be.
- Only compatible with microSHIFT Advent X drivetrains
 - Works with most 10-speed chains
 - Ratchet and pawl clutch can be adjusted with a switch
 - Large pulleys with tall teeth improve chain retention
 - Lightweight aluminum cage