Shimano

XTR M9250-R Di2 Wireless Upgrade Kit - M9250-GS Rear Derailleur, M9250-R Shifter, Battery, Charger,

Shimano XTR M9250-R Di2 Wireless Upgrade Kit brings current-generation XTR Di2 12-speed wireless electronic shifting to a compatible Shimano MTB drivetrain with a trail-ready package: the M9250-GS wireless rear derailleur, SW-M9250 Rapid ES wireless shifter, BT-DN320 battery, EC-DN100 charger, and an SM-CN910-12 quick link. It’s built for riders who want fast, precise shifts with a derailleur designed to better survive impacts common in enduro and modern XC.

1. Automatic Impact Recovery - Helps the derailleur return to its original position after a hit, reducing the chance of a ride-ending misalignment on rough trails
2. Shadow ES low-profile shape - A slimmer, impact-deflecting design aimed at minimizing direct strikes and keeping the derailleur protected in rock-and-root terrain
3. M9250-GS medium cage rear derailleur - Wide link structure, skid-plate design, durable carbon plate, and solid pulley construction for long-term robustness and consistent shifting
4. Rapid ES ergonomics and adjustability - Familiar feel with multi-axis adjustability to fine-tune lever position for different grips, glove thicknesses, and cockpit layouts
5. Multiple shift modes plus programmable third button - Choose hold-down multi-shift, click-through double shift, or locked-out single shift; assign a function to the third button through the E-TUBE app for additional setup control
6. Charging-friendly battery layout - BT-DN320 battery sits in an enclosed space on the derailleur for security on rough terrain while remaining removable for charging with the included EC-DN100 charger

Optimized for use with the Shimano XTR CS-M9200-12 9-45T cassette (sold separately). Chain not included; the included SM-CN910-12 quick link simplifies chain reconnection during installation or service.