Canvi Shimano XTR 12/11 Speed SGS

XTR - Rear Derailleur - Long Cage - SHIMANO SHADOW RD+ - 12-speed

The XTR M9100 series of derailleurs brings a new level of drivetrain silence thanks to decreased tension in the low gear position and an added bumper on the pulley cage. Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.
FEATURES

     Enhance shifting performance
     Optimized for new drive system
     Silent drive train
     Decreased rear derailleur tension at low gear position, to prevent high chain tension at low gear
     Add bumper at rear derailleur pulley cage
     Bigger 13T pulley

     Low profile design
     SHIMANO SHADOW RD+
     Low sprocket combination
     10-51T (12-speed)