SRAM X4 Rear Derailleur Black 7/8/9 Speed Long CageSRAM: SHIFTING PERFORMANCELeveraging the legendary history of SRAM shifting the X4 rear derailleur provides great shifting performance.SPECIFICATIONSSpeed (RD): 9/8/7sCable pull ratio: 1:1Cage (RD): LongMax tooth: 34Pulley bearings material: SteelCage material (RD): Aluminium
