Shimano Jockey Wheels.
Shimano Pulley Set RD-M7000 U5000 Jockey Wheels SLX, Metrea 11 Spd For MTB Bike
Shimano Pulley Set RD-M8000 - Jockey Wheels - 11T for XT
Shimano Pulley Set RD-M6000 SGS - Jockey Wheels - 11T for SLX Long Cage 10-Speed
Shimano Pulley Set RD-M6000 GS - Jockey Wheels - 11T - SLX Medium Cage 10-Speed
Shimano Pulley Set RD-M3100, M3020, M2000, M370 - Jockey Wheels, 7/8/9 Spd
Shimano Pulley Set RD-M663, M7000-10, M640 - Jockey Wheels - 11T - Y5XE98030
