To suit - RD-M5100 & M5130. Shimano Jockey Wheels.
Shimano Deore Pulley Set for RD-M5120/M4120 Tension & Guide - Jockeys Y3HM98010
Shimano Deore XT RD-M8100/8120 Tension & Guide Pulley Set - For Rear Derailleurs
Shimano XTR Pulley Set for RD-M9000/M9050 Tension & Guide - Jockey Wheels, 11 Sp
Shimano RD-M773 Deore XT Pulley Set 11T Sealed Bearings Guide Tension Pulley
Shimano RD-R8000 Tension and Guide Pulley Set for Rear Derailleur
Shimano RD-M8100 Tension and Guide Pulley Set for Rear Derailleur