- RD Protection Function: The new Automatic Impact Recovery feature instantly returns the derailleur to its original position after impact
- SHIMANO SHADOW ES: The slimmest and toughest evolution of SHADOW RD+, SHIMANO's pioneering chain stabilization idea
- Precise, clean wireless shifting: Ultra-fast shifting and a 500% gear range, without any sacrifice
- Protected battery: Tucked safely away inside a sealed space, the battery doesn't move even on the roughest terrain, while remaining easily removable for charging
- Version: Wireless Di2, 1x12 speed, long cage
- Power Supply: Shimano BT-DN320 battery
- Compatible chain: 12-speed HG
- Total capacity: 36 teeth
- Largest sprocket: 51 teeth
- Smallest sprocket max: 10 teeth
- Smallest sprocket min: 10 teeth
- Pulley: Sealed bearing The brand new long cage DEORE XT M8250 derailleur, paired with the standard 10-51T M8200 cassette, gives all types of riders the speed, range, and toughness to take on any mountain trail. Thanks to the integrated Automatic Impact Recovery, the new shock-deflecting wedge shape, and simple covered pulley solutions, this derailleur withstands the hardest hits on the trail, maintaining its lightning-fast shift speed and high-level performance.