SRAM 9 Speed Medium Cage Rear Derailleur Kit ('06-10 X0) - 11.7515.023.010
SRAM 9 Speed Medium Cage Rear Derailleur Kit ('06-10 X0) - 11.7515.023.010, SRAM Derailleur Cage Kits. Features: Derailleur cage assemblies include inner cage, pulleys, and tension spring Specs: Model:'06-10 X0 Description:rear derail cage kit, GS/medium (alum/carbon)