The XTR M9100 series of derailleurs brings a new level of drivetrain silence thank 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.
Optimized for new drive system
10-45T (12-speed)
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
10-51T (12-speed)
Enhance shifting performance
Silent drivetrain
Low profile design
Low sprocket combination
Weight: 240 g
Compatible chain: CN-M9100
Direct attachment (Conventional)
Fluoric coated 8 link bushings
Maximum smallest sprocket: 51T
Minimum smallest sprocket: 45T
Sealed pulley bearing
Sunken type pulley bolt
Pulley teeth: 13
Pulley cage: SGS
Rear speeds 12
Top-Normal Spring Type SHIMANO SHADOW RD+
Maximum biggest sprocket: 10T
Minimum biggest sprocket: 10T
Total capacity: 41T
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