Shimano Ultegra ST-R8050 Di2 Dual Control shifting/mech. brake levers, 2x11
With smaller, sleeker hoods, the 2x11-speed compatible Di2 ST-R8050 STI units deliver improved ergonomics for better rider comfort and control, with reduced lever stroke and lighter action.
Everything you need to make your ride distinctively yours: The Shimano Ultegra Di2 2x11-speed STI Dual Control ST-R8050
The new Di2 lever can operate with the recently released full or semi Synchronized Shifting function (with the BT-BN110 battery), giving riders the option to make automatic shifts from the front (full) or rear (semi) derailleurs. This means that you could set, for example, both left shifters to move up through the drivetrain and both right shifters to move down through the drivetrain. As well as this the shifters have more defined click feeling to offer quick and precise shifting with gloves. Following the design of the 'secret' Dura-Ace Di2 shifter buttons, the new Ultegra ST-R8070 hydraulic Di2 and ST-R8050 rim brake Di2 levers also include the top-of-the-hoods buttons for remote shifting, which can be programmed to shift gear or to control ancillary devices such as compatible computers or lights. All shift levers or buttons can also operate multi-shift which, like the top button and Synchronized Shift features, are customisable in the E-TUBE app for phones, tablets or PCs. The app not only allows you to customize functions and operations as you please, but also allows you to keep all units up-to-date with the latest firmware and run error checks to pinpoint and solve abnormalities.
Features
- More control and confidence in race conditions
- Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddles
- More intuitive, quicker shifting operation
- More defined click feeling and ergonomic shift lever position
- Customizable function to fit any riding style
- Each switch has the option for multi-shift ON or OFF
- E-TUBE project
- Optimum power transmitted with grip firmly
- Ideal ergonomic cover shape with better thickness & tenderness
- Openable hood cover
- Simple set up and maintenance
- Easy replace hood cover
- Openable hood cover
- Customizable the function to fit in rider's riding style
Product features
- Use: Road
- Group: Ultegra Di2
- Model: ST-R8050
- Type: Dual-Control (STI)
- Handlebar mounting: left/right
- Gear front: 2-speed
- Gear rear: 11-speed
- Optical gear display: No
- Lever reach adjust: Yes
- Handlebar diameter: 23.8mm/24.2mm
- Brake-type: SLR-EV
- Compatible: EW-SD50
- Master unit: No
- Firmware update by E-tube Project: Yes
- E-tube port (pcs): 4
- E-tube connector (pcs): 0
- Port for remote sprinter shifter (pcs): 2
Material
- Body: CFRP
- Lever: Aluminum
Weight
- 295g / pair (manufacturer information)
Scope of delivery
- 1 Ultegra Di2 2x11-speed STI Dual Control ST-R8050 Set
- 1 Brake wire (Polymer-coated) 2000mm
- 1 Brake wire (Polymer-coated) 1000mm
- 1 Brake cable BC-R680 1800mm black
- 1 Brake cable BC-R680 800mm black
- End caps
- 1 TL-EW02 Tool
Technology
SEIS SHIMANO ELECTRONIC INTELLIGENT SYSTEME-Tube
Synchro-Shift
Two SHIMANO Synchronized Shift modes will be available:
- Full SHIMANO Synchronized Shift: the front derailleur reacts based on the rear derailleur’s shift action. This essentially means that, when activated, there is no need for two separate shifters to control front and rear derailleurs, the two buttons on one shifter will control both derailleurs.
- Semi SHIMANO Synchronized Shift mode: the rear derailleur reacts based on the front derailleur’s shift action, shifting to the next most appropriate rear gear when the rider makes a front shift.
Ultegra R8000
More control and confidence in racing conditions
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More intuitive and faster shifting
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Better and more ergonomic grip
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Features that adapt to your driving style
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Ability to enable/disable multiple shifting
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Easy setup and maintenance
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Groupset | Shimano Ultegra Di2 |
Gears | 2x11 |
For brakes | mechanical |
Shift type | electronic |
Weight | 295 g |
product ID | 48757 |

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