Takeoff Shimano R7100 105 Di2 Electronic Road Groupset, 172.5 50/34T, Disc Brake



$1,499.95 Regular price $1,754.88

Shimano 105 R7100 Groupset: Electronic 12-Speed For All

Celebrate Precision. Embrace Innovation.

40 Years of Excellence Reimagined

In 1982, Shimano revolutionized cycling performance with the introduction of the Shimano 105. Now, 40 years later, we're celebrating this milestone with the ultimate upgrade: the Shimano 105 R7100, featuring Di2 electronic shifting technology.

Unparalleled Performance for Every Rider

Di2 Electronic Shifting: The Future at Your Fingertips

  • Wireless Precision: Experience flawless gear changes with Shimano's flagship 12-speed, wireless shifting. Welcome to a new era of performance and reliability.
  • Hybrid Connectivity: A wireless cockpit meets wired reliability, with a central battery ensuring consistent operation in all conditions.
  • Customizable Experience: Tailor your ride with the E-TUBE PROJECT App. Adjust shift speeds, configure shifting modes, and integrate seamlessly with third-party cycling computers.

Features That Set New Standards

  • Evolved Di2 Platform: Redesigned for speed, efficiency, and a wireless cockpit.
  • Advanced Drivetrain: Optimized 12-speed gearing for seamless performance.
  • Refined Ergonomics: A perfect balance of comfort, control, and aesthetics.
  • Enhanced Brake System: Quieter, more reliable, and easier to maintain.

Shimano 105 R7100 Groupset Specifications


Shifter Sets:

  • Model: 105 ST-R7170
  • Hose Length: 820mm (Front), 1420mm (Rear)


  • Model: FC-R7100
  • Length: 172.5mm
  • Chainrings: 50/34T

Brake Calipers:

  • Model: 105 ST-R7170
  • Compatibility: Compatible with both 160mm or 140mm Rotors
  • Pads: Resin Pad (W/Fin)

Rotors for Disc Brake:

  • Model: RT-70
  • Sizes: 160mm
  • Features: With Lock Ring

Front Derailleur:

  • Model: FD-R7150
  • Compatibility: 12-Speed, Down-Swing, Brazed-On Type

Rear Derailleur:

  • Model: RD-R7150
  • Type: 12-Speed, Top Normal, Shadow Design

Cassette Sprocket:

  • Model: CS-R7100
  • Range: 11-34
  • Speed: 12-Speed

Wiring and Battery:

  • SD300 Wire: 750mm (Battery To FD), 1200mm (Battery To RD)
  • Battery: BT-DN300, Built-In Type, with 3 SD300 Ports
  • Charging Cable: EW-EC300, 1700mm

Note: Chain not included.


This groupset is a takeoff from a brand new bike. It has never been ridden or used. It comes with the full factory warranty, but may show signs of installation. Rest assured, this does not impact the groupset's performance or reliability, and you'll receive the same high-quality experience Shimano is known for.


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