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Shimano XT Di2 RD-M8050-GS 11-speed Rear Derailleur

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Shimano XT Di2 RD-M8050-GS 11-speed Rear Derailleur

The RD-M8050 rear derailleur retain the accurate and stable shifting developed for XTR Di2 components.

The technology to change your ride: Shimano XT Di2 11-speed Rear Derailleur RD-M8050 GS Shadow+

Computer-controlled auto trim on the front derailleur keeps the drivetrain running smoothly. Meanwhile, at the rear, changes are seamless, even under high loads, on steep inclines or when cassettes are more mud than teeth. The derailleur motors are twice as powerful as those on Dura-Ace and Ultegra Di2 to give precise shifting in difficult conditions.
Battery performance is identical to that of its big brother, XTR Di2, giving a minimum of several hundred kilometres of power under heavy usage (eg lots of shifting over three chainrings plus control of ancillary devices). The visual LED display indicates battery charge and the LED screen shuts off after a few seconds of inactivity to save battery life. If you do find yourself running low, charging the battery takes around 90 minutes and internal batteries work on a simple plug and play operation so can be easily swapped.
Durability is also in line with XTR Di2 components. A sealed, waterproof system means DEORE XT Di2’s electronic signals will stand up to mud, water and dirt from the worst of winter. Plus, with no worrying about cross-chaining, cable stretch, or cable adjustments, your gear changes will be incredibly consistent.

Features

  • Accurate and stable shifting in any condition
  • Instant response
  • Customized shift speed within Multi-shift
  • Powerful shifting
  • Seamless gear change even under high load
  • Smart and efficient gear selection with SHIMANO Synchro Shift
  • Single lever operation
  • Rider-programmable shift mapping

Product features

  • Use: MTB
  • Group: Deore XT Di2 M8050
  • Model: RD-M8050 GS
  • Cage: medium
  • Mount Type: Direct Mount
  • Technology: Shadow RD+
  • Gear rear: 11-speed
  • Max. teeth large sprocket: 42T for 2×11  / 46T for 1×11
  • Min. teeth large sprocket: 40T
  • Min. teeth small sprocket: 11T
  • Max. Front Difference: 10T
  • Total Capacity: 35T
  • Compatible Chain: HG-X 11-speed
  • E-tube port (QTY): 1

Material

  • Aluminum
  • CFRP
  • Steel

Color

  • black

Weight

  • 320g (manufacturer information)

Scope of delivery

  • Shimano XT Di2 11-speed Rear Derailleur RD-M8050 GS Shadow+

Technologies

SEIS – Shimano Electronic Intelligent System 
The DURA-ACE 9070 and ULTEGRA 6870, XTR M9050, XT M8050 and ALFINE series have achieved a technological innovation of the computerized shifting system based on the Di2 concept with its new name, the SEIS (SHIMANO ELECTRONIC INTELLIGENT SYSTEM). The SEIS innovative shift technology is still 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 like 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 Levers so you don’t need to re-program your mind for a new system.
Synchro Shift 
Two derailleurs, One Shifter – Front derailleur reads the rear derailleur’s position and automatically executes front shifts Improves efficiency by minimizing time spent on smaller chainwheels. Programmable synchronized shifting map – The rider chooses when front shifts occur and also chooses rear derailleur command.
E-Tube 
E-Tube platform offers optimum flexibility on your bike. E-TUBE transmits interactive signals and power supply to each parts by “Plug & play” connection. E-TUBE is no rust, no stretch, no freeze and it ensures advanced low maintenance. And SM-PCE1 connects between PC and components to update firmware. Digital device stay the latest version with updating firmware for improve function.
Shadow RD+ 
Less distraction quiet drive train. Rear Derailleur Stabilizer reduces chain slap. Simple solution for chain drop. Lighter and more efficient than roller type chain device.
Rear Derailleur Pulley Cage

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