XTR M9100/M9120 Derailleur Pulley Set
XTR M9100/M9120 Derailleur Pulley Set, Genuine Shimano replacement pulleys for your Shimano 12-speed derailleursCompatibility:The Shimano RD-M9100 pulleys are compatible with the following:XTR RD-M9100-GSXTR RD-M9100-SGSXTR RD-M9120-SGS