Advent MX Rear Derailleur 10/11 Speed

The goal of Advent MX was to create a group that would stand up to the hardest 10% of riders, and our engineers delivered. The MX rear derailleur features our most robust linkage ever, with a beefy horizontal parallelogram and 33% stronger clutch force. What does that mean? Go ahead and huck to flat. When paired with an MX shifter and cassette, this derailleur delivers on Microshift's signature ease of ownership and adds an entirely new level of performance.