Description
Shimano EW-JC304 4 Port Junction - SD300
The Shimano EW-JC304 4 Port Junction SD300 is a compact and reliable junction box designed to connect multiple Shimano Di2 electronic shifting components. Allowing communication between shifters, derailleurs, batteries, and other compatible Di2 devices, it forms a critical part of modern Shimano electronic drivetrain systems.
Key Features
- Connects up to four Shimano Di2 components
- Compatible with Shimano SD300 electronic wiring systems
- Compact design for clean integration
- Simple installation and setup
- Reliable communication between Di2 components
- Supports modern Shimano electronic drivetrains
- Genuine Shimano replacement part
- Ideal for custom builds and Di2 upgrades
Reliable Di2 System Connectivity
The EW-JC304 acts as a central connection point within Shimano Di2 systems, ensuring seamless communication between drivetrain components for fast, accurate, and dependable electronic shifting performance.
Compact and Easy to Integrate
Its compact design allows the junction box to be neatly installed within the frame, handlebar area, or other protected locations, helping maintain a clean and professional looking bike build.
Designed for Modern Shimano Electronic Groupsets
Compatible with Shimano's SD300 wiring platform, the EW-JC304 supports a wide range of current Di2 road, gravel, and mountain bike systems, making it ideal for both new builds and replacement applications.
Simple Installation and Expansion
With four available connection ports, the junction box provides flexibility when adding or configuring Di2 components, making installation straightforward while supporting future system upgrades.
Genuine Shimano Quality
Manufactured to Shimano's exacting standards, the EW-JC304 delivers the reliability and durability expected from one of the world's leading drivetrain manufacturers.
