The Shimano Di2 2-Port Junction is an essential component for conjoining your electronic wiring seamlessly both inside and outside the frame. This precision-engineered junction ensures a clean, professional finish to your cockpit and internal cable management.

System Connectivity: Designed with two ports specifically for use with the advanced EW-SD300-I wire type

Clean Integration: Efficiently connects wiring across the frame to maintain a streamlined bicycle profile

Firmware Compatibility: Requires synchronized firmware versions across all Di2 components for flawless system operation

Technical Maintenance: Fully compatible with the Di2 system checker for easy firmware updates and diagnostic monitoring

Reliable Performance: Engineered by Shimano to prevent malfunctions and ensure consistent electronic shifting response