XTR RD-M9100 Rear Derailleur

The XTR M9100 derailleur 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. SGS/Long Cage is designed for the 51t XTR cassette GS/Medium Cage is designed for 45t XTR cassette Details: CAGE LENGTH GS/Medium, SGS/Long TOTAL CAPACITY 35t, 41t MAX FRONT DIFFERENCE 0T COLOR SERIES COLOR MOUNT Direct attachment (Conventional) TENSION PULLEY BEARING Sealed Bearing GUIDE PULLEY BEARING Sealed Bearing NUMBER OF PULLEY TEETH 13t SERIES XTR GENERATION M9100 MAX LOW SPROCKET 45t, 51t MIN LOW SPROCKET 45t TOP NORMAL SPRING TYPE SHIMANO SHADOW RD+ REAR SPEEDS 12