SRAM RED Medium Cage Rear Derailleur
The SRAM RED rear derailleur was designed with Exact Actuation technology to help balance, simplify and stabilize rear derailleur hanger design, tight cog spacing and exact cable tension. The result is an index shifting system that's easy to set up (and stays that way) for precise, efficient shifting every time. The new tooth pulley design with sound damping effect adds for a super-efficient and silent ride experience. And with carbon fiber cages and inner links, and aero-designed titanium hardware, you have rear derailleur that offers unparalleled operating performance.