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SM-JC41 For internal cable routing
New design allows for more flexible cable routing design
power button will light up red and blue
with added structural reinforcement via a shatter-resistant AURA reinforcing arch
The thin leading edge chamfered design gives you maximum clearance to reduce pedal strikes and deflect off trail obstacle
Shimano Di2 Junction A EW90A 3 Port 45 SM-JC41 For internal cable routingSHIMANO's SM EW90 A 3 port Junction A mounts neatly to the bike stem and connects with E TUBE wires from DI2 shifters and the downtube junction wire. The SM EW90 junction box features an integrated battery level indicator, charging port, and gear index setup switch.
