Shimano Ultegra R8050 Di2 Groupset

Shimano Ultegra R8050 Di2 Groupset
1 review
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1 299,00 600,00 discount
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  • Trustpilot review 9.4 out of 53.525 reviews

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Brand Shimano
Mount Braze
Number of gears 11 speed
Shifting Type Electronic
Brake Type Traditional Rim Brake
Front Derailleur Braze-on
Bottom Bracket No, not included
Crankset (Axle) Type Hollowtech II
Colour Grey



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The Shimano Ultegra R8050 Di2 groupset offers the fastest shifting performance, the best brake properties, and the most durability you could ever want. The Ultegra R8050 has also been optimised for wider rims and tyres. Ergonomically shaped Di2 shifters, new covers for the Di2 buttons, and with improved adjustability when it comes to shifting options. Synchronized Shifting is available to set-up the shifting speed and options to your liking. Finally, the rear derailleur uses the Shadow Technology for a lowered, more protected profile which helps aerodynamics and reduces the chance of damage.
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Delivery includes

• Shimano Ultegra ST-R8050 shifters
• Shimano Ultegra FC-R8000 crankset
• Shimano Ultegra CS-R8000 / HG800 cassette
• Shimano Ultegra BR-R8000 brake calipers
• Shimano Ultegra RD-R8050 rear derailleur
Medium cage (GS) standard with 11-32 and 11-34. Short cage (SS) standard with 11-28, 14-28, 12-25, 11-25.
• Shimano Ultegra FD-R8050 front derailleur (braze-on)
• Shimano Ultegra HG701 chain
• Di2 cables EW-SD50: 1*1200mm, 2*800mm en 3*300mm
• Internal battery BT-DN110
• Junction JC-41
• Junction EW-90-A
• Brake cables included
• Battery charger and DI2 cabletool are not included

• We recommend ordering a battery charger with this groupset, should you not already have one:
- Shimano DI2 interne batterijlader

• We recommend using the Shimano TL-EW02 Di2 Cable Tool for installing and removing Di2 cables:
- Shimano TL-EW02 DI2

Shimano recommends the following bottom bracket bearings with this groupset:
- Ultegra 6800 SM-BBR60 BSA/ITA
- Shimano BB72 PressFit

We recommend the following bearings for a BB30 fit:
- Wheels Manufacturing BB30 Enduro Bearings

We recommend the following bearings for a Press Fit 30 bottom bracket:
- Wheels Manufacturing Press Fit 30 Enduro Bearings



7 / 10

Loïc, 13 November 2017

Presque parfait

Le montage des fils de connexions reste une opération méticuleuse. A déplorer, le chargeur de la batterie n'est pas compris dans le prix ! Assez étonnant tout de même. Habitué au campa, je trouve le pedalier un peu "mastoc" Par contre fonctionnement très agréable, freinage des plus efficace et passage des vitesses précis !!! Exactement ce que j'attendais. Il ne reste plus qu'a proposer une version sans fils !


  • Passage précis des vitesses
  • Freinage


  • Pédalier a l'esthetique imposante
  • Les fils partout !

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Mount Braze
Number of gears 11 speed 12 speed 11 speed 11 speed
Junction Type External / Internal External / Internal
Shifting Type Electronic Electronic Mechanical Electronic
Brake Type Traditional Rim Brake Traditional Rim Brake / Direct Mount Rim Brake / Disc Flat Mount Traditional Rim Brake / Direct Mount Rim Brake / Direct Mount Front and Bottombracket Rear Disc Flat Mount
Crank Ratio 46 / 36 / 50 / 34 / 52 / 36 / 53 / 39 40 / 44 / 46 / 46 / 33 / 48 / 35 50 / 34 / 52 / 36 / 53 / 39 46 / 36 / 50 / 34 / 52 / 36 / 53 / 39
1 299,00 From 1 445,00 From 1 399,95 1 599,00
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All specifications

Detailed product description

The new Di2 Shifters allow you to operate the recently released full- or semi-Synchronised Shifting (with the BT-BN110 battery) technology, which enables rides to shift the front (fully synchronised) or rear (semi-synchronised) derailleurs automatically. This means that you could for instance set up both left shifters to change up and both right shifters to change down. The shifters have also been given a clearer "click"-sensation to achieve fast and accurate gear changes even while wearing gloves.

The asymmetric Shimano Ultegra R8000 crankset takes its design from the Dura Ace R9100 version. This shape ensures optimal power transfer and a more efficient pedalling motion. The Hollowtech technology has once again been applied to this crankset which helps Shimano achieve a perfect balance between weight and stiffness.

Front Derailleur
The front derailleur (FD) was designed to ensure fast and smooth gear changes even under heavy pedal loads. Combined with the restyled cranks, the front derailleur has been given a new look to both accommodate wider tyres and a bigger gear range without any detrimental effects to shifter performance.

Rear Derailleur
Shimano Shadow RD design: fully located underneath the cassette, offering more protection against damage. The RD comes in a short cage (SS) version for cassettes of between 11-25 and 11-30T and a long cage (GS) design to accommodate cassettes from 11-28 through to 11-34T. Both Di2 front- and rear derailleur communicate with one another to work with full- or semi-synchronised shifting, meaning the rider can keep his attention on the road or race.

The Shimano Ultegra R8000 brake calipers have a larger opening with more clearance to fit tyres up to 30 mm. The cable tension adjuster has also been given a more aerodynamic design. The lever function has been further optimised to exert more stopping power onto wider rims.