Shimano Part Number: Y5RT98120. Shimano XT 11-speed Jockey Wheels RD-M8000. - Shimano Deore XT Di2 RD-M8050-GS. Advanced Dyna-Sys11 MTB pulley set for XT 11-speed. Precision sealed bearings in both guide and tension pulleys keep drivetrain smooth and friction-free.
