Shimano Di2 Junction SM-JC41

Boost your DI2 system with SHIMANO's SM-JC41 Junction B. Connect your front and rear derailleurs, cockpit area, and battery with ease using this sleek 4-port central connector. Say goodbye to messy wires and hello to smooth, precise shifting. Dominate the road with confidence.

Features

• Compatible with SD50 wires
• 4 ports