XTR Di2 RD-M9250-GS Drivetrain Upgrade Kit

What Our Gearhead® Experts Are Saying:

"I recommend this kit for riders who want top-tier electronic shifting on a 1x12 Shimano setup. The derailleur reacts instantly, and the modulation at the shifter feels refined and precise. With EP801 compatibility, FREE SHIFT and AUTO SHIFT expand what’s possible on rolling terrain. It’s a premium drivetrain upgrade built for performance-focused builds."

The Shimano XTR Di2 RD-M9250-GS Drivetrain Upgrade Kit represents the pinnacle of Shimano’s 1x12 mountain bike technology. Engineered for XC, trail, and all-mountain applications, it integrates wireless Di2 connectivity with Hyperglide+ chain management for consistent, high-load shifting performance. The short cage RD-M9250-GS derailleur is optimized for 10–45T cassettes, delivering tight gear spacing and efficient chain control across varied terrain.

Wireless communication between the derailleur and the SW-M9250-IR I-Spec EV shift switch eliminates clutter while preserving Shimano’s refined tactile feedback. The shifter’s adjustable ergonomics allow precise cockpit customization, particularly when paired with I-Spec EV brake levers for a streamlined interface. The DN300 internal battery provides reliable power delivery, with charging handled through the EC300 interface for straightforward maintenance.

When integrated with Shimano EP801 or EP600 drive units, FREE SHIFT enables gear changes while coasting, and AUTO SHIFT adapts shifting based on cadence and terrain input—expanding efficiency and control on technical or rolling courses. Compatible with Shimano 12-speed HG+ drivetrains and supplied with a 12-speed quick link, this kit delivers a fully integrated, race-ready electronic shifting system for high-performance mountain builds.