The Shimano Di2 Wireless Transmitter Unit is a small component that allows for wireless communication between a Shimano Di2 electronic shifting system and a compatible cycling computer or head unit. This transmitter unit is designed to be integrated into the Di2 system, providing a seamless and reliable connection between the shifting system and the computer or head unit.
The transmitter unit is compatible with Shimano's Dura-Ace R9150 and Ultegra R8050 Di2 electronic shifting systems, as well as Shimano's E-Tube project firmware 3.4.2 or later. It uses the ANT+ wireless protocol to communicate with compatible cycling computers and head units, allowing riders to view important information such as gear position, battery level, and shift mode on their device's display.
The Shimano Di2 Wireless Transmitter Unit is compact and lightweight, with a low profile that minimizes its impact on the bike's aerodynamics. It is designed to be installed on the handlebars or stem, with a simple plug-and-play design that makes installation easy and straightforward.