The Shimano XTR SW-M9250 is the flagship Di2 wireless shift switch for mountain bike rear shifting, engineered for elite-level XC and enduro performance. Featuring SHIMANO RAPID ES wireless technology, it delivers lightning-quick, cable-free gear changes with the confident, tactile feel of a mechanical lever — ideal for riders who demand precision under pressure.

Highlights

• SHIMANO RAPID ES wireless: Cable-free Di2 electronic shifting eliminates wiring clutter while maintaining split-second response and reliability.
• Multiple shift modes: Choose hold-down multi-shift, tactile click-through double shift, or locked-out single shift to match your riding style and terrain.
• Four-way multi-axis paddle adjustment: Fine-tune paddle angle and reach to suit any hand size, ensuring a natural feel straight out of the box.
• Programmable third button: Assign functions via the E-TUBE app — control a bike computer, activate FREE SHIFT, or enable AUTO SHIFT for fully automated gear selection.
• I-SPEC EV mount: Integrates directly with compatible Shimano brake levers for a clean, uncluttered cockpit without separate clamps.
• Rubber traction pad: Provides secure grip and positive thumb placement during demanding descents and technical trail sections.

SHIMANO RAPID ES Technology

RAPID ES (Electronic Switching) is Shimano's wireless protocol for Di2 drivetrains, replacing the traditional wired switch connection with a reliable wireless signal. There are no junction boxes or additional wiring runs from the shifter — pairing is handled through the E-TUBE app and the system integrates seamlessly with the XTR Di2 rear derailleur and battery.

Ergonomics & Adjustability

The SW-M9250 is designed around a familiar trigger-style ergonomic profile that feels natural immediately, yet offers extensive adjustment. The four-way paddle adjustability lets you dial in the exact position for your hand size, while the rubber traction pad keeps your thumb anchored on rough terrain. Single and double shift modes are selectable to match rider preference.

Compatibility & Fit

The SW-M9250-IR is the right-hand variant, intended for rear shifting. It is compatible with Shimano XTR Di2 M9250 and M9260 rear derailleurs running 11 or 12-speed configurations. The I-SPEC EV mount integrates with compatible Shimano XTR, XT, and other I-SPEC EV brake levers. Programme and customise all functions using the Shimano E-TUBE Project app (iOS/Android).