Shimano XTR Di2 M9050 shifter for rear 11-speed derailleur. It features the optional Shimano Synchronized Shift, allowing for customizable synchronized front and rear shifting via a single FIREBOLT shifter. By simplifying the rider interface, shifting a mountain bike will have never felt so natural. The M9050 derailleurs communicate gear position and automatically execute front and rear shifts when a rider asks for a sequentially larger or smaller gear. This improves efficiency by minimizing time spent on smaller chainrings and cogs. Thanks to the programmable options with the Di2 platform, riders can choose when front shifts occur 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. Additionally, on a mountain bike with both front and rear FIREBOLT shifters installed, the rider can manually override shifts at any time, creating perfect cadence control. With Shimano Synchronized Shift your experience on a mountain bike has never been this intuitive, this personalized, this connected or this focused.
Independent lever position adjustment
Ergonomic rotary shift lever matches natural hand movement
Short stroke, perfect click levers provide faster, more accurate shifting
Increased trail readiness thanks to decreased shift effort and superior ergonomics
Programmable, multi-shift and Shimano synchronized shift functions
Weight: 66 g
Mount Position adjust
Firmware update by E-TUBE project
SEIS - innovative shift technology based on the SHIMANO INDEX SYJUHTRAUA HOIDJA (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics. This electronic shifting system has been extensively tested over past two years by several professional riders in all conditions possible, such as rain, mud, low temperatures, cobble stone roads and combinations of all of these at the same time. Shifting is executed by simply pressing the button. No power is needed to shift, which gives important advantages since it is easier now to always keep a tight grip on the handlebar and to keep your concentration on riding instead on shifting. The shift system allows accurate and effortless shifting in difficult circumstances for example when you have cold hands or when you are completely exhausted. Furthermore, the shifting performance will never be affected by contaminated or stretched cables since the shifting signal is transferred electronically. The operating buttons work similarly to mechanical DUAL CONTROL LEVER so you dont need to re-program your mind for the SEIS.
FIREBOLT - Quicker shifting operation instinctively even at any terrain with less effort. Ergonomic rotary switch match natural hand movement ---> Independent lever position adjustment Faster and more accurate shifting ---> Short-stroke, vivid index feeling
Di2 - The advantages of Di2 (Digital Integrated Intelligence) are clear for everybody who has tested it: changing gears becomes easier, effortless and faster by simply touching the shift buttons. Control at the top of your fingers. Additional benefits include an automatic trimming front derailleur, unmatched precision plus super easy installation and adjustment. This allows automatic chain guide movement in response to the gear position of the rear derailleur. There is no more need for concentration on trimming when riding.
Important: All Shimano Di2 electronic components require the same firmware version. In order to diagnose, read or update firmware, optional device is needed. Operating components with different firmware version may cause malfunction or loss of function.