Upgrade your drivetrain with the Shimano DEORE Di2 M6250 Wireless Kit, bringing precision, durability, and trail-ready tech to your ride at a more approachable price. Anchored by the M6250 long-cage rear derailleur, this system delivers fast, reliable wireless Di2 shifting and a wide 10–51T gear range with built-in Automatic Impact Recovery and enhanced ground clearance. The included M6250 Di2 shifter offers a customizable feel and fit, with multi-shift modes, a programmable third button, and satisfying tactile response, all designed to integrate seamlessly with your cockpit via I-SPEC EV or clamp band. Powering the system is Shimano’s compact BT-DN320 battery, tucked safely inside the derailleur for protection and easy removal, and topped off with the EC-EN100 charger to keep you fully juiced for long days on the trail. Whether you’re upgrading from mechanical or stepping into Di2 for the first time, this kit has everything you need for a smoother, smarter ride. Kit Includes: RD-M6250-SGS Di2 Rear Derailleur – 12-speed long cage with Shadow ES design and automatic recovery. SW-M6250-R/IR Di2 Shifter – Wireless Di2 shifting with multi-mode customization and ergonomic adjustability. BT-DN320 Battery – High-capacity Di2 battery delivers stable, protected power inside the derailleur. EC-EN100 Charger – Compact, easy-to-use charger for keeping your Di2 system ready to ride. 1x Shimano Quick Link Features: Trail-Ready Shifting: Wireless Di2 system delivers ultra-fast, precise 12-speed shifting across a wide 10–51T gear range. Automatic Impact Recovery: Rear derailleur intelligently resets after trail impacts to keep you rolling smoothly. Ergonomic Shifter Design: I-SPEC EV or clamp band options plus customizable multi-shift modes for a dialed cockpit feel. Integrated Battery Power: High-capacity Di2 battery is safely housed in the derailleur and easily removable for charging. Simple System Charging: Includes EC-EN100 charger for quick, no-fuss recharging of your Di2 drivetrain. Durable & Affordable: Built with Shimano’s proven trail performance at a more accessible price point. Specs: Derailleur Shifter Works With Derailleur Model: M6250 Model ID: RD-M6250-SGS (Long Cage) Shift Technology: Wireless Communication Protocol: Di2 Max Tooth: 51t Drive Config: 1x Weight: TBD Shifter Model: M6250 Model ID: SW-M6250-R/IR Shifter Type: Wireless Clamp: 22.2mm bar clamp, I-SPEC EV Works With The Shimano Deore Di2 M6250 Upgrade Kit is 100% backward compatible with previous generation Shimano 12-speed cassettes, chainrings (cranksets), and chains. Compatible models include: XTR M9100 and M9200, Deore XT M8100 and M8200, SLX M7100, and Deore M6100 and M6200. This kit will attach to modern framesets via a derailleur hanger, including the Universal Derailleur Hanger (UDH). Long cage derailleurs are compatible with 51t cassettes.