Shimano 105 R7100 Di2 Group

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-27% $2,279.99
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  • 170mm 50/34
  • 172,5mm 50/34
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Shimano 105 R7100 Di2 Groupset

The new SHIMANO 105 brings Di2 shifting to a new group of riders. For those who have only experienced mechanical shifting and ergonomics, SHIMANO 105 Di2 represents a transformation of the road cycling experience.

The new SHIMANO 105 brings Di2 shifting to a new group of cyclists.

The new SHIMANO 105 brings Di2 technology to a new group of cyclists. For those who have only experienced mechanical shifting and ergonomics, SHIMANO 105 Di2 12v represents a transformation of the road cycling experience.

The Shimano 105 Di2 has hybrid operation. The battery, located inside the frame, the derailleur and the derailleur are wired together. Meanwhile, the levers have wireless operation.

The current Di2 (Digital Integrated Intelligence), as we have mentioned, lacks cables from the controls, there being a single cable that connects the derailleur and derailleur and battery. This hybrid nature (some components connected by cable and others wireless) offers quick and precise changes, with long battery life and no interference.

The new group incorporates an advanced 12-speed transmission, thus having more gears available to improve pedaling efficiency in any situation. An improved interface and ergonomics, achieving a magnificent balance between comfort, aerodynamics and aesthetics.


The ergonomics of the gear levers have been further optimized. It's better to lose your fingers under the shifters and the shifter covers have more grip. It is also easier to assume different hand positions. The travel of the brake levers is adjustable, making the brakes also suitable for cyclists with smaller hands. In addition, 1.5 mm more difference has been made in the height of the Di2 buttons, for on and off. This makes it easier to operate the buttons correctly even with gloves or in the cold.

Disc brakes

The disc brakes have also been revised. The Shimano 105 aluminum brake caliper consists of 2 parts and is CNC machined. As with the Dura-Ace and Ultegra calipers, 10% more space has been created between the brake pads and brake discs. This has ensured that the brakes cannot or barely apply when you do not brake. Nothing is more annoying than brake discs rubbing during a climb or a sprint. In addition, power and braking dosage have been significantly improved.


The shifting speed of the front and rear derailleurs has been significantly increased by 58% and 45% over previous Shimano Di2 derailleurs. And optimized even further, especially for better shifting under load. You notice this immediately when standing up or in an acceleration of tempo.


Hyperglide cassettes are available in different ratios. When choosing these ratios, the 'sweet spot' has been included on sprockets 6, 7 and 8. The 12 speed allows you to maintain the gears that drive most pleasantly at medium speeds despite the large ratio differences. The cassettes come with the HG mounting pattern, which is also compatible with all Shimano HG 11-speed bodies.


This Shimano 105 R7100 Di2 Disc group only has one connection cable between battery, front and rear derailleur. Shift performance has been taken to an even higher level. Not only has the shift speed increased, you can now shift smoothly while applying power to the pedals. A breakout box is no longer necessary, but you can set up and charge the groupset via the rear derailleur. When the group is fully charged, it can travel about 1000 kilometers. The wireless shift paddles contain 2 button batteries which last approximately 3 years before needing to be replaced.

Brake maintenance

Brake maintenance is simplified. It is possible to bleed the brake without removing the caliper from the frame, thanks to a separate bleed port and rotary valve. A new funnel and spacer for purging the calibrator help optimize the purging process.

Shimano DI2 App

All adjustment options such as shifting button mapping, shifting mode or shifting speed adjustment can be done via the Shimano Di2 app. The function of the switch buttons can be set individually. Synchronized shifting or semi-synchronized shifting in which the front derailleur automatically shifts along the ideal chain line is still possible.


  • - Cranks 12v-Black 170mm or 172'5mm 50/34
  • - 140mm Center Lock discs (Ref: ISMRT70S)
  • - Double Di2 Derailleur (Ref: IFDR7150F)
  • - 12V Di2 Rear Derailleur (Ref: IRDR7150A)
  • - Disc Brake Kit (Ref: IR7170DLF6SC100A)
  • - Rear Disc Brake Kit (Ref: IR7170DRRDSC170A)
  • - Internal Battery (Ref: IBTDN3001)
  • - Charging Cable 1700mm (Ref: IEWEC300A)
  • - Chain 126 links +QL (Ref: ICNM7100126Q)
  • - Cassette 12V 11-34 CS-R7100 (Ref: ICSR710012134)
  • - Electric Cable 1200mm (Ref: IEWSD300L120)
  • - Electric Cable 600mm (Ref: 1EWSD300L060)

Check availability of purchasing with 160mm discs.

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