SRAM Red Front Braze-on Derailleur Yaw C2Top of the line front derailleur with innovative Yaw design and judicious use of lightweight materials. Optimized for shifting with X Glide Road chainrings and ErgoDynamic DoubleTap levers Yaw angle is designed specifically for 22 speed drive train Slim spring design eliminates frame interference Integrated chain spotter (adds 12 grams) protects frame without adding extra clunk, adjusts independently of the derailleur itself Compatible with Yaw 11