EuroBikeParts: Shimano Ultegra R8150 12s Di2 Electronic Group - Rim Brake, Shimano, SH-UL8100-RIM-Di2-Full
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Shimano Ultegra R8150 12s Di2 Electronic Group - Rim Brake

Manufacturer Shimano
In Stock - Ships within 24 hours from Illinois. Usual delivery within USA 2-7 days.
List Price: $2,699.95

You save $1,150.00
Price: $1,549.95

Shimano Ultegra R8150 12 Speed Di2 Electronic Rim Brake Group

The Shimano Ultegra R8150 12s Di2 Electronic Group is a top-of-the-line rim brake road bike component group that offers unparalleled performance and precision. The group includes a Di2 electronic shifter, which uses digital signals to provide lightning-fast and accurate shifting. The Ultegra R8150 also features a 12-speed drivetrain, allowing for a wide range of gear options to tackle any terrain. The group is built with the same advanced technologies and materials as Shimano's Dura-Ace group, making it a reliable and durable choice for serious riders. The Rim Brake version of the Ultegra R8150 12s Di2 Electronic Group offers powerful and consistent stopping power for confident and precise braking performance.

The freedom of the open road, crisp mornings and fiery sunsets. Laughter filling the air and then trailing off. Nature, unfolding as you roll. Breathtaking vistas that stop you in your tracks. Coffee stops and camaraderie. Route prep and weather checks. Rain breaks and sunny bursts. Mad dashes. Racing each other to the top. And then kicking back...

Drivetrain System
An integral part of Shimano's 12-speed road lineup, the Ultegra R8100 chainset builds upon Shimano's legendary front shifting and transmission efficiency. With new refinements for seamless 12-speed shifting, the Ultegra crank is now offered in lengths from 160 to 175mm, bringining performance and improved fit for smaller riders, triathletes, and riders with specific biomechanic requirements.

Brake System
The Ultegra R8150 brake caliper brings a new level of control to the road cycling world with enhanced modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain.


Typical Group Contents:

Shimano Ultegra Di2 Rear Derailleur (RD-R8150)

Shimano Ultegra Di2 Front Derailleur (FD-R8150)

Shimano Ultegra Rim Brakes (BR-R8100)

Shimano Di2 Internal Battery (BT-DN300)

Shimano Di2 Wires (EW-SD300)

Shimano Ultegra Crankset

Bottom Bracket

Shimano Ultegra Cassette (CS-R8100) 

Shimano Chain

Shimano EW-EC300 Charging Cable


Installation instructions: https://si.shimano.com/en/pdfs/dm/RAGN010/DM-RAGN010-02-ENG.pdf

Example of wiring: 

  • Left Shifter to Right Shifter (700mm)
  • Left Shifter to Battery (1600mm)
  • Front Derailleur to Battery (800mm)
  • Rear Derailleur to Battery (1200mm)
  • No junction needed

or 

  • Left Shifter to Right Shifter (700mm)
  • Left Shifter to Junction (550mm)
  • Junction to Battery (1600mm)
  • Front Derailleur to Battery (800mm)
  • Rear Derailleur to Battery (1200mm)
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