SHIMANO 11S GS Compatible CS Low Side Max Rear Derailleur IRDR7000GSL Black RD-R7000 28-34T

Pulley cage / installation / specifications: GS / direct mounting / OT-RS900 included Rear compatible speed / compatible chain / total capacity: 11 speed / HG-X11 / 39T Compatible top gear (min/max): 11/12T Compatible low gear (min/max): 28/34T