Shimano Di2 Junction 4 Port Unit
Shimano Di2 Junction 4 Port Unit
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Product Details
Product Details
Description
The Shimano Junction B - E-TUBE - Internal DI2 Wire Port serves as the central connector for DI2 systems. It connects wires from the front and rear derailleurs, cockpit area, and battery into the 4-port SM-JC41 junction, which is located inside the bike frame.
Key Features
- Series: DURA-ACE R9150 Series
- E-tube port: 4
- SD50 Port (pcs): 4
