SHIMANO DEORE RD-M5120 Rear Derailleur P-axle and O-ring – Y3HM98120
Shimano RD-M5120 P-Axle & O-Ring for restoring the Deore M5120 10/11 speed rear derailleur.
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.