Shimano Junction-A (Di2 spec.) EW-RS910 Built-in Type

The Shimano EW-RS910 Junction-A is the ideal solution for cyclists striving for a clean and aerodynamic cockpit. Instead of external mounting under the stem, this junction box is fully integrated into the frame or the end of the handlebars. This not only ensures a high-quality aesthetic finish for your Di2 system but also better protects the electronics from external influences during cycling.

This junction serves as the central communication point for your electronic Shimano groupset. The unit features a convenient charging port, a battery indicator, and buttons for adjusting the derailleurs. Thanks to E-Tube technology, the EW-RS910 is compatible with various Shimano Di2 systems, allowing you to easily change settings or perform firmware updates via the accompanying app or software.

Installation of the EW-RS910 requires a specific frame or handlebar designed for internal cabling. Thanks to Shimano's robust construction and reliable connectivity, you are assured of fast and accurate shifting performance. It is an essential upgrade for any high-end road bike where functionality and minimalist design go hand in hand.