Model name: Shimano Deore XT M8100 12 Speed 4pcs Group Set

Spec:

  • Shifter: SL-M8100 12 speed right shifter
  • Rear derailleur: RD-M8100-SGS 12 speed long cage 
  • Chain: CN-M8100 12 speed 126L
  • Cassette: CS-M8100 12 speed 10-51T
4 pcs mini group (12 speed upgrade kit)

New never used, but without original retail package.