From the manufacturer

Upgrade your trail drivetrain with the DEORE XT Di2 M8250 Upgrade Kit, an easy upgrade kit that delivers precise, lightning-fast shifting with next-gen wireless simplicity. Built around Shimano’s M8250 Derailleur, this kit is optimized for rugged trail riding, offering high-impact durability, automatic recovery after hits, and a streamlined wireless setup that keeps your cockpit clean and your rides smooth.

The RAPID ES M8250 shifter offers intuitive, customizable control with adjustable paddles, tactile feedback, and programmable multi-shift options, all accessible through Shimano’s E-TUBE PROJECT app. Powering the system is the compact BT-DN320 battery, protected inside the derailleur yet fully removable for charging with the included EC-EN100 charger.

Whether you're dialing in your trail bike or building a lightweight XC setup, this Di2 kit delivers Shimano’s hallmark reliability with the most advanced wireless shifting experience yet.

Kit Includes:

• XT M8250 Rear Derailleur (Choose Medium or Long Cage)

• XT M9850 Di2 Wireless Shifter

• Shimano BT-DN320 Di2 Battery

• Shimano EC-DN100 Di2 Battery Charger

• 1x Shimano Quick Link

Features

• Wireless Precision: Clean cockpit and instant shifts with wireless Di2 control
• Auto Recovery: Derailleur returns to position after impact for worry-free trail performance
• Trail-Ready Durability: Reinforced plates, shielded pulleys, and added ground clearance.
• Custom Control: Ergonomic shifter with programmable shift modes and a third button for added functions.
• Efficient Power: Battery lasts up to 340 km on a single charge with energy-saving tech.

Specifications