Shimano Ultegra Di2 Front Derailleur FD-R8150 Dual 2x12V Direct Mount

Shimano ULTEGRA Di2 FD-R8150 2x12 Speed ​​Front Derailleur

The Science of Speed ​​– Maximum Precision, Minimum Latency

The new Shimano Ultegra Di2 FD-R8150 2x12 front derailleur is a latest-generation electronic shifting system developed with Shimano's "Science of Speed" philosophy, offering a perfect balance of speed and control. With its compact, aerodynamic design and wireless Di2 technology, it elevates racing performance to the highest level.

🚴 Shimano “The Science of Speed” Philosophy

Shimano focused on a single goal when developing the ULTEGRA R8150 series: absolute speed . The new 12-speed Di2 system surpasses traditional mechanical systems with its completely wireless operation.
Whether you're racing or practicing, every gear change occurs with digital precision and millisecond speed .

The new FD-R8150 front derailleur, with its compact form, reduces wind resistance by 33% . This means a revolution not only in speed but also in aerodynamic efficiency.

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⚙️ Technical Specifications

• Usage Area: Road bike

• Group: ULTEGRA Di2 R8150

• Model: FD-R8150

• Installation: Braze-On

• Gears (front/rear): 2x12

• Action: Down-Swing

• Number of Upper Teeth: 46-52T

• Total Capacity: 16T

• Compatible Chain: CN-M8100 HG 12-speed

• Chain Angle: 61°–66°

• Chain Length: 44.5mm

• Compatible Power Cable: EW-SD300

• Software Update via E-TUBE Project: Yes

• E-Tube Port (quantity): 1

• E-Tube Connectors (quantity): 0

• Wireless Di2 Chip: No

• Material: Aluminum, Titanium, CFRF composite

• Color: Series color (Ultegra R8150 shades of gray)

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💡 Key Features

• 33% smaller front profile: Improved aerodynamics and aesthetic appearance.

• High-speed gear changes with the wireless Di2 system.

• Customizable gear behavior with the e-TUBE app:

  • Gear speed adjustment

  • Full or semi-synchronized gear mode

  • Programmable buttons on the gear levers

• SEIS (Shimano Electronic Intelligent System): Absolute accuracy and reliability in electronic gear shifting.

• Integrated digital communication: All gear commands are transmitted with millisecond precision.

• Compact housing: Durable construction that protects the mechanism in case of impact or falls.

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🧠 Technologies

🔹 SEIS – Shimano Electronic Intelligent System

SEIS is the electronic version of Shimano's SIS (Shimano Index System) technology, which the company has been developing for years.
Thanks to this system:

• Gear changes are performed entirely electronically .

• Cable tension, contamination, or weather conditions do not affect gear performance.

• Even in cold weather, when tired, or on challenging stages , gear changes are flawless .

• The buttons, which function similarly to mechanical Dual Control levers, make it easy for the driver to adapt.

🔹 E-TUBE Platform

• Easy installation and maintenance thanks to the "Plug & Play" connection system.

• It eliminates problems such as oxidation, cable elongation, or freezing.

• Software updates can be performed by connecting to a computer via the SM-PCE1 connection module.

• It always works with the most up-to-date functions.

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📦 Box Contents

• 1 x Shimano Ultegra Di2 FD-R8150 2x12-speed Front Derailleur (Braze-On type)

• Note: Wireless Di2 chip is not included.

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🏭 Technical Information and Manufacturer

• Manufacturer Code: IFDR8150F

• EAN: 4550170875305

• UPC: 192790875309

• Manufacturer:
  SHIMANO INC.
  3-77 Oimatsu-cho, Sakai-ku, Sakai-shi
  590-8577 Osaka, Japan
  🌐 www.shimano.com

• European Representative:
  Shimano Europe BV
  High Tech Campus 92
  NL-5656 Eindhoven, Netherlands
  📩 contactshimano@shimano-eu.com

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⚙️ Compatible Components

• Rear Derailleur: Shimano Ultegra Di2 RD-R8150

• Chain: Shimano CN-M8100 12-speed HG

• Crank: Shimano Ultegra FC-R8100

• Electronic cable: EW-SD300

• E-TUBE Software: E-TUBE Project App