After the launch of the new Shimano XTR M9000 groupset, which offers an 11 speed cassette that can be used with a single, double or triple chainring, Shimano have released an electronic version: XTR M9050 – or XTR Di2.
Although many pro MTB riders are already using XTR M9000, the XTR Di2 will add a new option for professionals and performance minded riders alike. WIth over 5 years of experience producing electronic shifting, Shimano have created the first production electronic mountain bike groupset. No need for custom mechs, shifters or bar mounts.
XTR Di2 redefines how mountain bikers can control and personalise the way they ride through the proven Di2 digital platform. Shimano XTR M9050 Di2 electronic shifting integrates with XTR M9000 mechanical components in a variety of Race or Trail “Rider Tuned” 1x, 2x, or 3x drivetrain configurations.
With over 20,000 kilometres of testing to ultimately refine how precision and logic can deliver a completely new mountain bike ride experience, XTR Di2 digital has been refined to become a simple rider reflex, allowing riders to place their attention where it belongs – on the trail ahead. Totally new ergonomics reduce hand movement and improve control, further boosting rider confidence.
Shimano’s E-tube wiring and electronics make expanding Di2 shifting systems easy and also enable riders to custom program and upgrade the system through a computer software interface. Riders can program and control the shift patterns for single or multi- shift modes, the speed of those shifts and the actions for each shifter and button. With XTR Di2, Shimano Synchronised Shift is also custom programmed through the Di2 program software, allowing front and rear shifts using a single shifter.
Did you get that? TWO DERAILLEURS, ONE SHIFTER. A programmable option with XTR Di2 M9050, Shimano Synchronised Shift creates intuitive shifting through customisable synchronised front and rear shifting via a single Firebolt shifter.
The XTR M9050 derailleurs communicate gear position and automatically execute front and rear shifts when riders select a sequentially larger or smaller gear. This improves efficiency by minimising time spent on smaller chainrings and cogs. Riders can program when front shifts occur through two customisable shift maps based on terrain and personal preferences. An audible alarm will warn of an upcoming front derailleur shift so that a rider can choose to remain in a given gear. On a mountain bike with both front and rear Firebolt shifters installed, the rider can manually shift at any time. Synchronised Shift becomes another available tool for riders, not a requirement. With a touch of a button, riders quickly choose between synchronized maps or choose manual mode for complete control. ￼￼￼￼￼￼￼￼￼￼
The shifter has a rotary shift lever design to match natural hand movement, and independent lever position adjustment. Beyond a lighter, faster shift, being able to control Fox Racing Shox suspension components is also possible.
Long regarded as the most notable feature of Shimano Di2 shifting, the front derailleur performance remains the best in the industry, now with the additional capabilities of Shimano Synchronised Shift. With XTR M9050 Di2, front shifts require the same light effort of a rear Di2 shift, reducing effort and freeing up the rider to focus on the trail. The FD-M9050 uses computer controlled auto trim as the chain moves up and down the cassette to keep the drivetrain running smoothly.
All these options need control, and the odular mounting structure SC-M9050 Display Unit monitors important Di2 data: gear selection, battery level and shift mode. The SC-M9050 not only provides data, but also is the convenient interface where riders will plug in and charge the system from the handlebar – an especially handy virtue when running an internal battery. The expandable E-tube platform also means that integration with electric-controlled suspension from FOX is a reality