More than 800 brands
800.000 active customers

Shimano Ultegra Di2 R8050 Groupset 2x11-speed - Mechanical Rim Brakes

Shimano Ultegra Di2 R8050 Groupset 2x11-speed - Mechanical Rim Brakes

Employing the latest technologies from elite Dura Ace R9100 road components and through its proven System Engineering approach, Shimano’s Ultegra R8000 series delivers refined rider ergonomics, increased shifting performance and confident control in all riding conditions. Riders who choose the Di2 shifting components (R8050) have further the possibility to turn on or off the multi-shift function as well as to customize every key's setting individually.

The Shimano Ultegra Di2 R8050 groupset consists of:

  • Ultegra Di2 ST-R8050 STI
  • Ultegra BR-R8000 brake
  • Ultegra FC-R8000 crankset
  • Ultegra Di2 FD-R8050 front derailleur
  • Ultegra Di2 RD-R8050-SS rear derailleur - short
  • Ultegra CS-R8000 cassette
  • CN-HG701-11 chain
  • Shimano SM-EW90 junction kit (version selectable):
    SM-EW90-A with 3 ports
    SM-EW90-B with 5 ports
  • Shimano SM-JC41 junction box for Di2 - internal
  • Shimano Di2 SM-BCR2 USB charger for BT-DN110
Note: The offered RD-R8050-SS rear derailleur is only compatible to sprocket ratios up to 30 teeth. For ratios up to 32 teeth, the RD-R8050-GS is needed. Our service team would be happy to advise you.

Without battery BT-DN110, EW-SD50 cables and hubs! These components can be ordered separately.

In addition, the EW-WU111 can be purchased. In conjunction with the BT-DN110 battery, it is possible to transfer Di2 gear position, battery life, as well as some other common rider data functions to tablets or smartphones.

Shimano Ultegra Di2 ST-R8050 STI for rim brakes

The Shimano Ultegra Di2 ST-R8050 dual control levers allow not only more intuitive shifting operations but also quick and precise shifting thanks to a clearer separation between shift buttons. A more defined click feeling and a wider reach adjustment range generate even more comfort. Group specific each switch has the option for multi-shift ON or OFF. The STI's top button remote switch is programmable for third party cycle computers. Every function is compatible to E-Tube application or Shimano PC software.

Shimano Ultegra BR-R8000 brakes

The BR-R8000 offers a very sleek design, with narrower gaps between the arms. The wider clearance makes it compatible with larger tire sizes such as 28C. The stabilizer between the axles reduces deformation and improves the braking efficiency, offering a clear contact feeling with balanced rigidity, weight and stopping power.

Shimano Ultegra FC-R8000 crankset

The Hollowtech II crankset will help you transfer more power into speed. It offers weight reduction without sacrificing stiffness. It enables a wide range of gear combinations to suit your every need. Paired with the new front and rear derailleurs, your shifts will be so fast and reliable you’ll almost question whether they happened at all! The beautifully shaped crankarm, trickled down from Dura-Ace, is a tribute to the aesthetics of your bike.

The cranksets with 50-34, 52-36 and 53-39 teeth are weight-saving thanks to Hollowglide technology and the outer chainring made of aluminium/CFRP. Alternatively, the cyclocross crank is offered with 46-36 teeth.

Shimano Ultegra Di2 FD-R8050 front derailleur

The new FD-R8050 is redesigned to fit a wider gear pitch without sacrificing shifting performance. Quick and smooth front shifting is guaranteed under all circumstances, even when you’re shifting to the large chainring while riding out of the saddle. Due to SHIMANO SYNCHRONIZED SHIFT the front derailleur will shift automatically when the rear derailleur is shifted, allowing both derailleurs to work together efficiently. With SEMI-SYNCHRONIZED SHIFT it’s the other way around, with the rear derailleur shifting automatically when the front derailleur is shifted, obtaining optimal front/rear gear positioning. At the same time, Di2’s auto-trim feature will automatically centre the front derailleur precisely around the chain, avoiding chain rub as you move the chain across the cassette. This is how fast, precise and smooth your shifting can be.

Compatible chain type: HG-EV 11-speed/ HG-X11
Chain stay angle: 61-66°

Shimano Ultegra Di2 RD-R8050-SS rear derailleur - short

The Shimano Ultegra Di2 RD-R8050-SS rear derailleur features the group-specific sleek integrated appearance with a low-profile design. An optimized slant angle and a wide range from 11 to 30 teeth regarding compatibility are further assets of the Di2 Shadow rear derailleur. Thanks to an intuitive shift control the thr rider can maintain his race concentration. For an optimal setting at any time rear derailleur's system communicates with front derailleur via Synchronized Shift technology.

Shimano Ultegra CS-R8000 cassette

Superior choice is at the heart of Shimano's rider-tuned philosophy. With gear combinations 11-25T, 11-28T, 11-30T, 11-32T, 12-25T and 14-28T you’ll have all the options you need to tune your ride.

Please note: The cassette with 11-32 sprocket ratio is only compatible to the Shimano GS rear derailleurs with medium cage.

Shimano CN-HG701-11 Chain - without Quick Link

Shimano 11-speed chain with SIL-TEC surface. Also suitable for e-bike.

Sil-Tec, an advanced surface plating technology to increase both performance and durability. It adds a low friction surface treatment that runs smoother and lasts longer.

Shimano SM-EW90-A/B junction kit

Junction kit for the electronic Shimano Di2 shifting system. For external installation. Not compatible with Flight Deck.

SM-EW90-A with 3 ports: For connection with the STI's or time trial shifters.
SM-EW90-B with 5 ports: For connection with the STI's or time trial shifters and additional shifters.

The remaining junction is for the connection with SM-JC41 junction kit via separately sold EW-SD50 wire kit.

Shimano SM-JC41 junction box for Di2 - internal

Junction box for Shimano Di2 cable EW-SD50 with internal routing. Front/rear derailleur, cockpit area and battery are connected here.

Only for use in compatible frames with internal routing.

Shimano Di2 SM-BCR2 USB-Charger for SM-BTR2 + BT-DN110

Battery charger with USB cable for Shimano's Li-Ion batteries SM-BTR2 + BT-DN110. You can connect the charger to a SM-EW90-A or SM-EW90-B power distributer as well as the SC-MT800 disply. The SM-BCR2 is also an interface for the Shimano E-Tube configuration software.

Note: For socket charging an optional USB adapter like the Bryton power adapter is needed.

Manufacturer's item codes:

  • STI: ISTR8050L + ISTR8050R
  • brakes: IBRR8000AF82X | IBRR8000AR82A | IBRR8000AF83X | IBRR8000AR83A
  • crankset: IFCR8000CX04 | IFCR8000CX26 | IFCR8000DX04 | IFCR8000DX26 | IFCR8000DX39 | IFCR8000DX66 | IFCR8000EX04 | IFCR8000EX26 | IFCR8000EX39
  • front drailleur: IFDR8050F
  • rear derailleur: IRDR8050SS
  • cassette: ICSR800011125 | ICSR800011128 | ICSR800011130 | ICSR800011132 | ICSR800011225 | ICSR800011428
  • chain: ICNHG70111116
  • SM-EW90 junction kit: ISMEW90A / ISMEW90B
  • SM-JC41 junction box: ISMJC41
  • SM-BCR2 USB charger: ISMBCR2


In order to ensure proper functioning of the electronic Di2 drive system, all components require the same firmware version.

The optional diagnostic device allows for reading out or updating the firmware version. An operation of components with different firmware versions may cause a malfunction or loss of function.

Operation requires additional EW-SD50 cables. These are not in scope of delivery. Please contact our service team for a suitable configuration for your system.
Included in delivery: without battery, EW-SD50 cables and brake housings
Material: aluminium
carbon fiber reinforced polymer (CFRP)
glass fibre reinforced plastic (GFRP)
Material of sprocket: steel, aluminium

Fact Sheet of Shimano Ultegra Di2 R8050 Groupset 2x11-speed - Mechanical Rim Brakes

Product Name: Shimano Ultegra Di2 R8050 Groupset 2x11-speed - Mechanical Rim Brakes
Manufacturer: Shimano Parts
Item Code: SHI359784
activity: Cycling
usage bikesport: Road Bike
crank arm length: 165, 170, 172.5, 175
gear ratio: 11-12-13-14-15-16-17-19-21-23-25
number of chainrings: 2
shifting system: 11-speed
shifting actuation: Electronic
bottom bracket axle profile: 24mm Hollow Shaft
brake actuation: Mechanical
number of teeth: 53-39
front derailleur max. teeth: 53
rear derailleur max. teeth: 30
rear derailleur capacity: 35
Color: Black
Manufacturer page: