SRAM Cage Kit for Rear Derailleur XX1 11 Speed (Inner Cage Only and X-Sync Pulleys), 11.7518.017.000

Set of replacement for XX1 11 speed rear derailleur
Large upper pulley offset automatically adjusts chain gap
12-tooth X-SYNC pulley wheels
Roller bearing clutch technology reduces bounce and chain slap
Derailleur pulley set includes upper and lower pulleys with bearing plates
0.05 kilograms