Shimano Deore RD-M5100 11 Speed Rear Derailleur SGS Long Cage

SHIMANO DEORE M5100 rear derailleur delivers consistent MTB shifting performance over rough terrain. The low profile design avoids damage from rocks whiles Shimano's chain stabilizing technology reduces chain drop and makes for a quiet drivetrain in all gear positions. The rear derailleur is compatible to cassettes with up to 51 teeth. The larger 13T pulley design increases smooth shifting performance. MPN: RD-M5100-SGS