Shimano Di2 Wireless Transmitter Unit

The Shimano Di2 Wireless Transmitter Unit is a compact component that enables wireless communication between a Shimano Di2 electronic shifting system and compatible cycling computers or head units. It allows riders to access drivetrain data in real time while maintaining a clean, integrated cockpit setup.

Designed for Shimano Dura-Ace R9150 and Ultegra R8050 Di2 systems, the transmitter works with Shimano E-Tube Project firmware (3.4.2 or later) to ensure proper system communication and compatibility. It uses the ANT+ wireless protocol to transmit key ride data, including gear position, battery status, and shift mode, to supported head units.

The unit is lightweight and low-profile, designed to minimize aerodynamic impact while integrating neatly into the cockpit area. Installation is straightforward, with a plug-and-play connection that mounts cleanly on or near the handlebars or stem depending on setup preferences.

Key Features

• ANT+ Wireless Connectivity – Transmits Di2 system data to compatible cycling computers and head units
• Shimano Di2 System Integration – Compatible with Dura-Ace R9150 and Ultegra R8050 electronic shifting systems
• Compact, Low-Profile Design – Lightweight construction with easy plug-and-play installation for clean cockpit integration