SHIMANO DEORE XT SW-M8050 Di2 FIREBOLT shifter for front 1/2-speed derailleur. It deliver seamless control and instant response. Free from mechanical limitations, FIREBOLT's rotary switch design follows the rider's natural hand movement and features customizable lever ergonomics. The short stroke levers provide light action with a vivid indexed feel to improve shift accuracy even in the roughest trail conditions, while the versatility of Di2's programmable shift logic allows the rider to custom tune the system to their riding style. For riders who want expanded gear range while maintaining a simple rider interface, Shimano Synchronized Shift mode controls both derailleurs via a single Di2 FIREBOLT shifter. The system selects efficient gear combinations between the front and rear so riders just concentrate on pedaling and controlling the bike.
Compatible with 1/2x11-speed Di2 equipped drivetrain
Weight: 90 g
SEIS - innovative shift technology based on the SHIMANO INDEX SYSTEM (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.
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