Sram X4 7/8/9spd Long Cage Rear Derailleur

Leveraging the legendary history of SRAM shifting, the X4 rear derailleur provides great shifting performance.Features:Low profile designWide pivot design for superior stiffness during shiftsSpecifications:Speed (RD): 9/8/7sCable pull ratio: 1:1Cage (RD): Long, MediumMax tooth: 34Color (RD): Black, SilverPulley bearings material: SteelCage material (RD): Aluminum, n/a