Introduced in 1999

Threaded design for a secure connection that reduces bleed down

Step-In: The Step-In mechanism makes it extremely easy to step into the binding

Pulley|Guide pulley bearing- Sealed Bearing

XTR Long Cage Rear Derailleur 12-speed bamboo utility deck Introduced in 1999Shimano XTR Long Cage Rear Derailleur 12 speed 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. Details: Enhance shifting performance Optimized for new drive system Silent drivetrain Decreased rear