Shimano XT RD-M8120-SGS Rear Derailleur - 12-Speed Long Cage Black For 2x MFPN=RF725PS-RB-B2 Backing Plate Material Steel Compound

Backing Plate Material Steel Compound Organic Heat Sink No Pad Shape Number 58

Color Black Bottle Type Standard Access Style Side Mount Type Bolt-On Material Composite Defined Color Black

Rider weight limit 187lbs Color Black Pedal Type Platform Weight 404 Pedal Spindle 9/16" Pedal Body Material Magnesium Spindle Material Chromoly Defined Color Black

Model M30 Road Spindle Interface Praxis M30/28 Shell BB30/PF30 Shell ID 42/46mm Width 68mm Color Black Shell Type BB30/PF30

4Tire Type Tubeless Ready ClincherPSI 25

Shimano XT RD-M8120-SGS Rear Derailleur - 12-Speed Long Cage Black For 2x MFPN=RF725PS-RB-B2 Backing Plate Material Steel CompoundDeore XT RD M8100 Rear DerailleurOffers fast and shockless shifting thanks to HYPERGLIDE+ technology The low profile design includes a bumper added to the derailleur pulley cage Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain Includes large 13t pulley Drivetrain is silent in all gear positions with decreased rear derailleur and chain tension in low gear Largest Cog 45 Color Black Rear Der Shifter Compatibility Shimano