rear derailleur inner cage x01 eagle 52t polar including screwsThe SRAM X01 Eagle Rear Derailleur Inner Cage (52T) is an original replacement part for SRAM X01 Eagle derailleurs . It ensures smooth and precise shifting in 12 speed MTB drivetrains, and thanks to its durable materials, it guarantees long life and reliability. Mounting screws are included for quick replacement. Product features: Compatibility: Fits SRAM X01 Eagle 12 speed derailleurs . Supports cassettes up to 52T: Designed to work with 10 52T