Find original Shimano components for your electronic drivetrain at Escapa. The Shimano XT Di2 Rear Derailleur Button Switch SW-M8050, with ergonomics based on Shimano Rapidfire principles, features the Di2 Firebolt switch, which provides intuitive and unmatched shifting—meaning short shift travel and reduced effort.
With a gentle touch of the Di2 shifter, Firebolt shifts gears quickly and precisely. The electrical signal is transmitted via the E-Tube cable to the front and rear derailleurs, which are driven by small servo motors.
Thanks to free programming, specific assignment of shift and derailleur functions is possible. This means that the operation of the derailleur—for example, shifting from left to right—or the derailleur mechanism can be configured to shift from right to left. In addition, the Firebolt Synchro Shift system is compatible, meaning the front and rear derailleurs are electronically synchronized with each other, and a single lever is sufficient to perform any desired shifting operation as efficiently as possible. The circuit can be customized as desired. For example, a multi-shift function can be programmed to allow all eleven gears to be shifted simultaneously while the lever is pressed.
The placement of the adjustable Firebolt shift buttons is fully supported by ergonomics
. This means the shifters are positioned exactly where your thumbs naturally rest. The optimal gear can be selected more quickly and with less effort—an important side effect of this design: better control over the bike and, consequently, lower energy expenditure for the rider.
- Independent lever placement
- Ergonomic shift point that matches the natural movement of the hand
- The short shift travel and ideal lever feedback provide faster and more precise shifting
- Reduced energy consumption thanks to less effort and superior ergonomics
- Programmable multiple-shift and synchronized shifting functions
- Open cab
- Switches are adjustable laterally and for tilt.
Technical Specifications:
Version: for derailleur and/or front derailleur
Shifting stages: 2/3/11-speed, Standard, Synchro Shift, Multi Shift, freely programmable shifting pattern
Position: Left
Mounting: Clamp mount
Connection: E-Tube cable connection
Connection cable: EW-SD50 (external routing), EW-SD50-I (internal routing)
Compatibility: Shimano XT Di2
Weight: 93g
Includes: Shimano XT Di2 Rear Derailleur Button SW-M8050 (connection cables must be purchased separately)