Shimano XT Di2 Rear Derailleur RD M8050

The new Shimano XT 11-speed Di2 electronic components, wireless-enabled via a Bluetooth interface, designed for use in everything from cross-country to enduro. Thanks to the wireless function, the XT Di2 rear derailleur can be programmed via a smartphone or tablet.

Shimano XT RD-M8050 rear derailleur:

The XT Di2 RDM 8050 GS rear derailleur, short cage, for use with single-chainring cranksets from the 11-speed series. The XT Di2 Shadow Plus 8050 rear derailleur shifts with extreme precision, speed and smoothness. The new, slimmer design, fluorine-coated stainless steel bushings and extremely precise machined fits ensure high shifting precision and a long service life.

Shimano Shadow Plus:

The Shimano Shadow Plus mechanism has been further developed on the XTR RD-M9000 rear derailleur. With the ability to adjust the friction damper as desired via a screw mechanism, the system can be tuned to prioritise maximum stability or minimal operating forces. Furthermore, the rear derailleur features an even slimmer profile, which protects it from damage and further reduces operating forces thanks to the shallow angle of engagement.

Shimano XT 8050 Rear Derailleur Compatibility:

The new Shimano 11-speed XT Di2 series is compatible with the XT SW-M8050 and XTR SLWM8050 shift levers. The SC-MT800 display is required for the wireless function and as the junction box (Junction Port A).

Shimano XT Di2:

Shimano’s XT M8050 Di2 shifting system enables the seamless control and immediate response that only digital shifting with the M8000 Rhythm Step drivetrain can offer. The combination of Di2 with close gear ratios means that shifting becomes second nature. Less effort is required when shifting, and superb ergonomics ensure effortless shifting, allowing the hand to remain firmly on the handlebars, so that perfect control over riding manoeuvres and gear changes is always maintained. With the XT Di2 system, gear changes are virtually effortless, even on the MTB groupset, achieved by briefly or firmly pressing the Firebolt shift levers.

Shimano XT Di2 programming:

Individual assignment of shifting functions and shift levers is possible. Control of the front derailleur can be assigned from the left to the right shift lever, and that of the rear derailleur from the right to the left. The programmable Multi-Shift function allows you to shift through a maximum of all eleven gears at once whilst holding down the shift lever. Furthermore, the entire drivetrain, including the front derailleur and rear derailleur, can be operated using a single Firebolt shifter. Shimano calls this feature Synchro Shift. Depending on the position of the rear derailleur, the front derailleur knows when it needs to shift and carries out the corresponding shifting operations on the crankset. The shifting speed is also programmable.

Shimano Di2 installation:

Installing Shimano Di2 components is almost easier than fitting traditional gear systems. The standardised E-Tube cable connectors and junction boxes ensure straightforward and quick installation. The shift lever(s) are connected to the display. The display acts as Junction Port A and a wireless interface. A cable runs from the display to the junction box (Junction B), and from there the cables run to the rear derailleur, front derailleur and battery. The battery can be mounted externally on the bottle cage, or internally in the seat tube, down tube or steerer tube. Specially designed frames are required for internal cable routing.

Shimano Di2 Junction B Port:

The Junction B distribution box is responsible for connecting the rear derailleur, front derailleur, battery and shift levers. The Junction B port is available in two versions: the internal SMJC41, for fully internal routing, and the SMJC40 for mounting beneath the bottom bracket, should fully internal routing not be possible.

The SMBTC1 battery holder is available as an option. This allows for external mounting of the SMBTR2 round battery. At the same time, the SMBTC1 battery holder provides the Junction B connections – a total of 6 ports – meaning the additional Junction B port is not required. The additional 2 ports not used by the drivetrain can be used to power electric suspension components.

Shimano XT Di2 RD M8050 rear derailleur technology

• Short cage, total capacity 41 teeth
• Aluminium parallelogram offset inwards
• Stainless steel pivot pins
• Adjustable spring tension
• Maximum sprocket size 46 teeth, 42 teeth for 2x11 / 46 teeth for 1x11
• Minimum largest sprocket 40 teeth
• Maximum smallest sprocket: 11 teeth
• Shifting range 41 teeth
• Maximum front gear difference: 10 teeth
• Weight: 292 grams

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com