What Our Gearhead(R) Experts Are Saying: "This shifter feels incredible right out of the box. The adjustability is next-level, and I love that I can program the third button for whatever I need-dropper, suspension, or e-bike controls. Shifts are lightning fast and super tactile. It's easily the most intuitive Di2 control I've used."Precision meets personalization in the Shimano XTR Di2 Shifter Switch (SW-M9250-R/IR), built for riders who want seamless control at their fingertips. Designed for 11- and 12-speed drivetrains and compatible with band clamp or I-SPEC EV setups, this shifter brings a familiar shape and refined adjustability to the next generation of Di2. From sprint starts to technical climbs, it delivers crisp wireless shifts with zero hesitation. Multiple shifting modes-like hold-down multi-shift or tactile double-click-let us dial in how the shifter responds, while a fully programmable third button gives us the flexibility to integrate e-bike functions, dropper posts, or other third-party accessories through Shimano's E-Tube platform. Every movement is fast, clean, and intuitive-tailored for total trail or XC dominance.