Shimano
SHIMANO Di2 SM-JC41 B Junction Box (Internal)
SHIMANO Di2 SM-JC41 B Junction Box (Internal)
Regular price
HK$253.00
Regular price
Sale price
HK$253.00
Unit price
/
per
SM-JC41
SHIMANO - Junction B - E-TUBE - Internal DI2 Wire Routing - 4-Port
For internal DI2 wire routing, SHIMANO's SM-JC41 Junction B is the central connector for DI2 systems. Wires from the front and rear derailleurs, cockpit area, and battery all plug into the 4-port SM-JC41 junction, which is housed inside the bike frame.