Dyna-Sys component Shadow Rear Derailleur Total capacity: 43T(SGS), 35T(GS) Guide pully: Sealed bearing Tension Pully: Sealed bearing **Products image is SGS type Model Number RD-M773 Series DEORE XT Shifting Action Top Normal SHADOW Mount Type Maximum Sprocket 36T Minimum Sprocket 11T Front Difference 18T Total Capacity GS 35T / SGS 43T Guide Pulley Tension Pulley Pulley Bolts Pulley Bolts Retainer Bracket Body Bracket Pivot Seal Plate Body Plate Pivot Bolt Plate Pivot Seal Outer Link Inner Link Link Pin Bushings Outer Plate Inner Plate Average Weight