Shimano DI2 DRIVETRAIN UPGRADE KIT XTR

The all-new XTR long-cage derailleur provides riders and racers with the speed, range, and durability needed to conquer every mountain trail. With features such as Automatic Crash Recovery, an impact-deflecting shape, and easy-to-maintain covered pulleys, this derailleur is designed to withstand harsh trail impacts while maintaining its lightning-fast shifting speed and top-notch performance. The XTR SHIMANO RAPID ES shifter feels natural right out of the box. Still, its familiar fit and advanced adjustable design allow it to be customized to comfortably fit any hand. It offers multiple shift modes, including hold-down multi-shift, tactile click-through double shift, and locked-out single shift, ensuring precise operation. A tunable third button also provides options for further system tuning or third-party connections.  This kit includes:  XTR Di2 REAR DERAILLEUR – Long Cage – 12s (RD-M9250-SGS) XTR Di2 Shifter Switch – Band Clamp - 11/12s (SW-M9250-R), Di2 Rear Derailleur Battery (B