Leveraging the legendary history of SRAM shifting, the X4 rear derailleur provides great shifting performance.

• 1:1 actuation (SRAM shifter compatible)
  
• Low profile design
• 9/8/7 speed system compatible
• Wide pivot design for superior stiffness during shifts
• SRAM Model ID: RD-X4-A1

Attributes

Max Front Difference	22T
Maximum Cog	34T
Minimum Cog	11T
Primary Color	Black
Cage	Long
RD Capacity	45T
Speed	7/8/9
Mount	Standard